Faculty Profiles - MENJO Hiroaki

Papers - MENJO Hiroaki

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Measurement of the forwardηmeson production rate in p-p collisions at√s=13TeV with the LHCf-Arm2detector Reviewed International coauthorship International journal

Adriani, O; Berti, E; Betti, P; Bonechi, L; Bongi, M; D'Alessandro, R; Detti, S; Hagenauer, M; Itow, Y; Kasahara, K; Kitagami, Y; Kondo, M; Matsubara, Y; Menjo, H; Muraki, Y; Ohashi, K; Papini, P; Piparo, G; Ricciarini, S; Sako, T; Sakurai, N; Scaringella, M; Shimizu, Y; Tamura, T; Tiberio, A; Torii, S; Tricomi, A; Turner, WC; Yoshida, K

JOURNAL OF HIGH ENERGY PHYSICS Vol. 2023 ( 10 ) 2023.10

Language：English Publishing type：Research paper (scientific journal) Publisher：Journal of High Energy Physics

The forward η mesons production has been observed by the Large Hadron Collider forward (LHCf) experiment in proton-proton collision at s = 13 TeV. This paper presents the measurement of the inclusive production rate of η in pT < 1.1 GeV/c, expressed as a function of the Feynman-x variable. These results are compared with the predictions of several hadronic interaction models commonly used for the modelling of the air showers produced by ultra-high energy cosmic rays. This is both the first measurement of η mesons from LHCf and the first time a particle containing strange quarks has been observed in the forward region for high-energy collisions. These results will provide a powerful constraint on hadronic interaction models for the purpose of improving the understanding of the processes underlying the air showers produced in the Earth’s atmosphere by ultra-energetic cosmic rays.

DOI： 10.1007/JHEP10(2023)169

Web of Science

Scopus

Performance of RHICf detector during operation in 2017 Reviewed International coauthorship International journal

Adriani O., Berti E., Bonechi L., D'Alessandro R., Goto Y., Hong B., Itow Y., Kasahara K., Kim M. H., Menjo H., Nakagawa I, Ohashi K., Sako T., Sakurai N., Sato K., Seidl R., Tanida K., Torii S., Tricomi A.

JOURNAL OF INSTRUMENTATION Vol. 16 ( 10 ) 2021.10

Measurement of energy flow, cross section and average inelasticity of forward neutrons produced in root s=13 TeV proton-proton collisions with the LHCf Arm2 detector Reviewed International coauthorship International journal

Adriani O., Berti E., Bonechi L., Bongi M., D'Alessandro R., Detti S., Haguenauer M., Itow Y., Kasahara K., Menjo H., Muraki Y., Ohashi K., Papini P., Ricciarini S., Sako T., Sakurai N., Sato K., Tamura T., Tiberio A., Torii S., Tricomi A., Turner W. C., Ueno M.

JOURNAL OF HIGH ENERGY PHYSICS ( 7 ) 2020.7

Transverse Single-Spin Asymmetry for Very Forward Neutral Pion Production in Polarized p plus p Collisions at root s=510 GeV Reviewed International coauthorship International journal

Kim M. H., Adriani O., Berti E., Bonechi L., D'Alessandro R., Goto Y., Hong B., Itow Y., Kasahara K., Lee J. H., Ljubicic T., Makino Y., Menjo H., Nakagawa I, Ogawa A., Park J. S., Sako T., Sakurai N., Sato K., Seidl R., Tanida K., Torii S., Tricomi A., Ueno M., Zhou Q. D.

PHYSICAL REVIEW LETTERS Vol. 124 ( 25 ) 2020.6

Measurement of the neutrino-oxygen neutral-current quasielastic cross section using atmospheric neutrinos in the SK-Gd experiment Reviewed International coauthorship International journal

Sakai S., Abe K., Bronner C., Hayato Y., Hiraide K., Hosokawa K., Ieki K., Ikeda M., Kameda J., Kanemura Y., Kaneshima R., Kashiwagi Y., Kataoka Y., Miki S., Mine S., Miura M., Moriyama S., Nakano Y., Nakahata M., Nakayama S., Noguchi Y., Sato K., Sekiya H., Shiba H., Shimizu K., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Tanaka H., Yano T., Han S., Kajita T., Okumura K., Tashiro T., Tomiya T., Wang X., Yoshida S., Fernandez P., Labarga L., Ospina N., Zaldivar B., Pointon B.W., Kearns E., Raaf J.L., Wan L., Wester T., Bian J., Griskevich N.J., Locke S., Smy M.B., Sobel H.W., Takhistov V., Yankelevich A., Hill J., Jang M.C., Lee S.H., Moon D.H., Park R.G., Bodur B., Scholberg K., Walter C.W., Beauchêne A., Drapier O., Giampaolo A., Mueller T.A., Santos A.D., Paganini P., Quilain B., Nakamura T., Jang J.S., Machado L.N., Learned J.G., Choi K., Iovine N., Cao S., Anthony L.H.V., Martin D., Prouse N.W., Scott M., Sztuc A.A., Uchida Y., Berardi V., Calabria N.F., Catanesi M.G., Radicioni E., Langella A., De Rosa G., Collazuol G., Iacob F., Mattiazzi M., Ludovici L., Gonin M., Pronost G., Fujisawa C., Maekawa Y., Nishimura Y., Okazaki R., Akutsu R.

Physical Review D Vol. 109 ( 1 ) 2024.1

Language：English Publishing type：Research paper (scientific journal) Publisher：Physical Review D

We report the first measurement of the atmospheric neutrino-oxygen neutral-current quasielastic (NCQE) cross section in the gadolinium-loaded Super-Kamiokande (SK) water Cherenkov detector. In June 2020, SK began a new experimental phase, named SK-Gd, by loading 0.011% by mass of gadolinium into the ultrapure water of the SK detector. The introduction of gadolinium to ultrapure water has the effect of improving the neutron-tagging efficiency. Using a 552.2 day dataset from August 2020 to June 2022, we measure the NCQE cross section to be 0.74±0.22(stat)-0.15+0.85(syst)×10-38 cm2/oxygen in the energy range from 160 MeV to 10 GeV, which is consistent with the atmospheric neutrino-flux-averaged theoretical NCQE cross section and the measurement in the SK pure-water phase within the uncertainties. Furthermore, we compare the models of the nucleon-nucleus interactions in water and find that the binary cascade model and the Liège intranuclear cascade model provide a somewhat better fit to the observed data than the Bertini cascade model. Since the atmospheric neutrino-oxygen NCQE reactions are one of the main backgrounds in the search for diffuse supernova neutrino background (DSNB), these new results will contribute to future studies - and the potential discovery - of the DSNB in SK.

DOI： 10.1103/PhysRevD.109.L011101

Scopus

Measurement of the transverse single-spin asymmetry for forward neutron production in a wide p T range in polarized p+p collisions at s =510 GeV Reviewed International coauthorship International journal

Kim M.H., Adriani O., Berti E., Bonechi L., D'Alessandro R., Goto Y., Hong B., Itow Y., Kasahara K., Kim Y., Lee J.H., Lee S.H., Ljubicic T., Menjo H., Mitsuka G., Nakagawa I., Ogawa A., Oh S., Sako T., Sakurai N., Sato K., Seidl R., Tanida K., Torii S., Tricomi A.

Physical Review D Vol. 109 ( 1 ) 2024.1

Language：English Publishing type：Research paper (scientific journal) Publisher：Physical Review D

Transverse single-spin asymmetries AN of forward neutrons at pseudorapidities larger than 6 had only been studied in the transverse momentum range of pT<0.4 GeV/c. The RHICf Collaboration has extended the previous measurements up to 1.0 GeV/c in polarized p+p collisions at s=510 GeV, using an electromagnetic calorimeter installed in the zero-degree area of the STAR detector at the Relativistic Heavy Ion Collider. The resulting AN values increase in magnitude with pT in the high longitudinal momentum fraction xF range, but they reach a plateau at lower pT for lower xF values. For low transverse momenta, the AN's show little xF dependence and level off from intermediate values. For higher transverse momenta, the AN's also show a tendency to reach a plateau at increased magnitudes. The results are consistent with previous measurements at lower collision energies, suggesting no s dependence of the neutron asymmetries. A theoretical model based on the interference of π and a1 exchange between two protons could partially reproduce the current results; however, an additional mechanism is necessary to describe the neutron AN's over the whole kinematic region measured.

DOI： 10.1103/PhysRevD.109.012003

Scopus

Search for Astrophysical Electron Antineutrinos in Super-Kamiokande with 0.01% Gadolinium-loaded Water Reviewed International coauthorship International journal

Harada, M; Abe, K; Bronner, C; Hayato, Y; Hiraide, K; Hosokawa, K; Ieki, K; Ikeda, M; Kameda, J; Kanemura, Y; Kaneshima, R; Kashiwagi, Y; Kataoka, Y; Miki, S; Mine, S; Miura, M; Moriyama, S; Nakano, Y; Nakahata, M; Nakayama, S; Noguchi, Y; Okamoto, K; Sato, K; Sekiya, H; Shiba, H; Shimizu, K; Shiozawa, M; Sonoda, Y; Suzuki, Y; Takeda, A; Takemoto, Y; Takenaka, A; Tanaka, H; Watanabe, S; Yano, T; Han, S; Kajita, T; Okumura, K; Tashiro, T; Tomiya, T; Wang, X; Yoshida, S; Megias, GD; Fernandez, P; Labarga, L; Ospina, N; Zaldivar, B; Pointon, BW; Kearns, E; Raaf, JL; Wester, T; Bian, J; Griskevich, NJ; Locke, S; Smy, MB; Sobel, HW; Takhistov, V; Yankelevich, A; Hill, J; Lee, SH; Moon, DH; Park, RG; Bodur, B; Scholberg, K; Walter, CW; Beauchêne, A; Drapier, O; Giampaolo, A; Mueller, TA; Santos, AD; Paganini, P; Quilain, B; Ishizuka, T; Nakamura, T; Jang, JS; Learned, JG; Choi, K; Iovine, N; Cao, S; Anthony, LHV; Martin, D; Scott, M; Sztuc, AA; Uchida, Y; Berardi, V; Catanesi, MG; Radicioni, E; Calabria, NF; Langella, A; Machado, LN; De Rosa, G; Collazuol, G; Iacob, F; Lamoureux, M; Mattiazzi, M; Ludovici, L; Gonin, M; Pronost, G; Fujisawa, C; Maekawa, Y; Nishimura, Y; Okazaki, R; Akutsu, R; Friend, M; Hasegawa, T; Ishida, T; Kobayashi, T; Jakkapu, M; Matsubara, T; Nakadaira, T; Nakamura, K; Oyama, Y; Sakashita, K; Sekiguchi, T; Tsukamoto, T; Bhuiyan, N; Burton, GT; Di Lodovico, F; Gao, J; Goldsack, A; Katori, T; Migenda, J; Xie, Z; Zsoldos, S; Kotsar, Y; Ozaki, H; Suzuki, AT; Takagi, Y; Takeuchi, Y; Feng, J; Feng, L; Hu, JR; Hu, Z; Kikawa, T; Mori, M; Nakaya, T; Wendell, RA; Yasutome, K; Jenkins, SJ; McCauley, N; Mehta, P; Tarrant, A; Fukuda, Y; Itow, Y; Menjo, H; Ninomiya, K; Lagoda, J; Lakshmi, SM; Mandal, M; Mijakowski, P; Prabhu, YS; Zalipska, J; Jia, M; Jiang, J; Jung, CK; Wilking, MJ; Yanagisawa, C; Hino, Y; Ishino, H; Kitagawa, H; Koshio, Y; Nakanishi, F; Sakai, S; Tada, T; Tano, T; Barr, G; Barrow, D; Cook, L; Samani, S; Wark, D; Holin, A; Nova, F; Yang, BS; Yang, JY; Yoo, J; Fannon, JEP; Kneale, L; Malek, M; McElwee, JM; Thiesse, MD; Thompson, LF; Wilson, ST; Okazawa, H; Kim, SB; Kwon, E; Seo, JW; Yu, I; Ichikawa, AK; Nakamura, KD; Tairafune, S; Nishijima, K; Nakagiri, K; Nakajima, Y; Shima, S; Taniuchi, N; Watanabe, E; Yokoyama, M; de Perio, P; Martens, K; Tsui, KM; Vagins, MR; Xia, J; Kuze, M; Izumiyama, S; Matsumoto, R; Ishitsuka, M; Ito, H; Kinoshita, T; Matsumoto, R; Ommura, Y; Shigeta, N; Shinoki, M; Suganuma, T; Yamauchi, K; Martin, JF; Tanaka, HA; Towstego, T; Gaur, R; Gousy-Leblanc, V; Hartz, M; Konaka, A; Li, X; Prouse, NW; Chen, S; Xu, BD; Zhang, B; Posiadala-Zezula, M; Boyd, SB; Edwards, R; Hadley, D; Nicholson, M; O'Flaherty, M; Richards, B; Ali, A; Jamieson, B; Marti, L; Minamino, A; Pintaudi, G; Sano, S; Suzuki, S; Wada, K

ASTROPHYSICAL JOURNAL LETTERS Vol. 951 ( 2 ) 2023.7

Language：English Publishing type：Research paper (scientific journal) Publisher：Astrophysical Journal Letters

We report the first search result for the flux of astrophysical electron antineutrinos for energies(10)MeV in the gadolinium-loaded Super-Kamiokande (SK) detector. In 2020 June, gadolinium was introduced to the ultrapure water of the SK detector in order to detect neutrons more efficiently. In this new experimental phase, SK-Gd, we can search for electron antineutrinos via inverse beta decay with efficient background rejection thanks to the high efficiency of the neutron tagging technique. In this paper, we report the result for the initial stage of SK-Gd, during 2020 August 26, and 2022 June 1 with a 22.5 × 552 kton · day exposure at 0.01% Gd mass concentration. No significant excess over the expected background in the observed events is found for the neutrino energies below 31.3 MeV. Thus, the flux upper limits are placed at the 90% confidence level. The limits and sensitivities are already comparable with the previous SK result with pure water (22.5 × 2970 kton · day) owing to the enhanced neutron tagging. Operation with Gd increased to 0.03% started in 2022 June.

DOI： 10.3847/2041-8213/acdc9e

Web of Science

Scopus

Measurement of the cosmogenic neutron yield in Super-Kamiokande with gadolinium loaded water Reviewed International coauthorship International journal

Shinoki, M; Abe, K; Hayato, Y; Hiraide, K; Hosokawa, K; Ieki, K; Ikeda, M; Kameda, J; Kanemura, Y; Kaneshima, R; Kashiwagi, Y; Kataoka, Y; Miki, S; Mine, S; Miura, M; Moriyama, S; Nakano, Y; Nakahata, M; Nakayama, S; Noguchi, Y; Okamoto, K; Sato, K; Sekiya, H; Shiba, H; Shimizu, K; Shiozawa, M; Sonoda, Y; Suzuki, Y; Takeda, A; Takemoto, Y; Takenaka, A; Tanaka, H; Watanabe, S; Yano, T; Han, S; Kajita, T; Okumura, K; Tashiro, T; Tomiya, T; Wang, X; Yoshida, S; Megias, GD; Fernandez, P; Labarga, L; Ospina, N; Zaldivar, B; Pointon, BW; Kearns, E; Raaf, JL; Wan, L; Wester, T; Bian, J; Griskevich, NJ; Kropp, WR; Locke, S; Smy, MB; Sobel, HW; Takhistov, V; Yankelevich, A; Hill, J; Lee, SH; Moon, DH; Park, RG; Bodur, B; Scholberg, K; Walter, CW; Beauchêne, A; Bernard, L; Coffani, A; Drapier, O; El Hedri, S; Giampaolo, A; Mueller, TA; Santos, AD; Paganini, P; Quilain, B; Ishizuka, T; Nakamura, T; Jang, JS; Learned, JG; Choi, K; Cao, S; Anthony, LHV; Martin, D; Scott, M; Sztuc, AA; Uchida, Y; Berardi, V; Catanesi, MG; Radicioni, E; Calabria, NF; Langella, A; Machado, LN; De Rosa, G; Collazuol, G; Iacob, F; Lamoureux, M; Mattiazzi, M; Ludovici, L; Gonin, M; Pronost, G; Fujisawa, C; Maekawa, Y; Nishimura, Y; Akutsu, R; Friend, M; Hasegawa, T; Ishida, T; Kobayashi, T; Jakkapu, M; Matsubara, T; Nakadaira, T; Nakamura, K; Oyama, Y; Sakashita, K; Sekiguchi, T; Tsukamoto, T; Bhuiyan, N; Boschi, T; Burton, GT; Di Lodovico, F; Gao, J; Goldsack, A; Katori, T; Migenda, J; Taani, M; Xie, Z; Zsoldos, S; Kotsar, Y; Ozaki, H; Suzuki, AT; Takeuchi, Y; Bronner, C; Feng, J; Kikawa, T; Mori, M; Nakaya, T; Wendell, RA; Yasutome, K; Jenkins, SJ; McCauley, N; Mehta, P; Tarrant, A; Tsui, KM; Fukuda, Y; Itow, Y; Menjo, H; Ninomiya, K; Lagoda, J; Lakshmi, SM; Mandal, M; Mijakowski, P; Prabhu, YS; Zalipska, J; Jia, M; Jiang, J; Jung, CK; Wilking, MJ; Yanagisawa, C; Harada, M; Ishino, H; Ito, S; Kitagawa, H; Koshio, Y; Nakanish, F; Sakai, S; Barr, G; Barrow, D; Cook, L; Samani, S; Wark, D; Holin, A; Nova, F; Yang, JY; Yang, BS; Yoo, J; Fannon, JEP; Kneale, L; Malek, M; McElwee, JM; Stone, O; Thiesse, MD; Thompson, LF; Okazawa, H; Kim, SB; Kwon, E; Seo, JW; Yu, I; Ichikawa, AK; Nakamura, KD; Tairafune, S; Nishijima, K; Koshiba, M; Iwamoto, K; Nakagiri, K; Nakajima, Y; Shima, S; Taniuchi, N; Yokoyama, M; Martens, K; de Perio, P; Vagins, MR; Xia, J; Kuze, M; Izumiyama, S; Inomoto, M; Ishitsuka, M; Ito, H; Kinoshita, T; Matsumoto, R; Ommura, Y; Shigeta, N; Suganuma, T; Yamauchi, K; Martin, JF; Tanaka, HA; Towstego, T; Gaur, R; Gousy-Leblanc, V; Hartz, M; Konaka, A; Li, X; Prouse, NW; Chen, S; Xu, BD; Zhang, B; Posiadala-Zezula, M; Boyd, SB; Hadley, D; Nicholson, M; O'Flaherty, M; Richards, B; Ali, A; Jamieson, B; Marti, L; Minamino, A; Pintaudi, G; Sano, S; Suzuki, S; Wada, K

PHYSICAL REVIEW D Vol. 107 ( 9 ) 2023.5

Language：English Publishing type：Research paper (scientific journal) Publisher：Physical Review D

Cosmic-ray muons that enter the Super-Kamiokande detector cause hadronic showers due to spallation in water, producing neutrons and radioactive isotopes. These are a major background source for studies of MeV-scale neutrinos and searches for rare events. In 2020, gadolinium was introduced into the ultra-pure water in the Super-Kamiokande detector to improve the detection efficiency of neutrons. In this study, the cosmogenic neutron yield was measured using data acquired during the period after the gadolinium loading. The yield was found to be (2.76±0.02(stat)±0.19(syst))×10-4 μ-1 g-1 cm2 at an average muon energy 259 GeV at the Super-Kamiokande detector.

DOI： 10.1103/PhysRevD.107.092009

Web of Science

Scopus

Search for Cosmic-Ray Boosted Sub-GeV Dark Matter Using Recoil Protons at Super-Kamiokande Reviewed International coauthorship

K. Abe et al. (The Super-Kamiokande Collaboration)

Physical Review Letters Vol. 130 ( 3 ) page： 031802 2023.1

LHCf Run II physics results in proton-proton collisions at √s = 13 TeV Invited International coauthorship

A. Tiberio et al.

Proceedings of Science Vol. 414 page： 121 2022.11

Search for proton decay via p -> mu(+) K-0 in 0.37 megaton-years exposure of Super-Kamiokande Reviewed International coauthorship International journal

Matsumoto R., Abe K., Hayato Y., Hiraide K., Ieki K., Ikeda M., Kameda J., Kanemura Y., Kaneshima R., Kashiwagi Y., Kataoka Y., Miki S., Mine S., Miura M., Moriyama S., Nakano Y., Nakahata M., Nakayama S., Noguchi Y., Okamoto K., Sato K., Sekiya H., Shiba H., Shimizu K., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Watanabe S., Yano T., Han S., Kajita T., Okumura K., Tashiro T., Tomiya T., Wang X., Xia J., Yoshida S., Megias G. D., Fernandez P., Labarga L., Ospina N., Zaldivar B., Pointon B. W., Kearns E., Raaf J. L., Wan L., Wester T., Bian J., Griskevich N. J., Kropp W. R., Locke S., Smy M. B., Sobel H. W., Takhistov V, Yankelevich A., Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Mueller Th A., Santos A. D., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Choi K., Cao S., Anthony L. H. V, Martin D., Scott M., Sztuc A. A., Uchida Y., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Mattiazzi M., Ludovici L., Gonin M., Pronost G., Fujisawa C., Maekawa Y., Nishimura Y., Friend M., Hasegawa T., Ishida T., Kobayashi T., Jakkapu M., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Boschi T., Di Lodovico F., Gao J., Goldsack A., Katori T., Migenda J., Taani M., Xie Z., Zsoldos S., Kotsar Y., Ozaki H., Suzuki A. T., Takeuchi Y., Yamamoto S., Bronner C., Feng J., Kikawa T., Mori M., Nakaya T., Wendell R. A., Yasutome K., Jenkins S. J., McCauley N., Mehta P., Tsui K. M., Tarrant A., Fukuda Y., Itow Y., Menjo H., Ninomiya K., Lagoda J., Lakshmi S. M., Mandal M., Mijakowski P., Prabhu Y. S., Zalipska J., Jia M., Jiang J., Jung C. K., Wilking M. J., Yanagisawa C., Harada M., Ishino H., Ito S., Kitagawa H., Koshio Y., Ma W., Nakanishi F., Sakai S., Barr G., Barrow D., Cook L., Samani S., Wark D., Holin A., Nova F., Yang J. Y., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Kim S. B., Kwon E., Seo J. W., Yu I, Ichikawa A. K., Nakamura K. D., Tairafune S., Nishijima K., Koshiba M., Iwamoto K., Nakagiri K., Nakajima Y., Shima S., Taniuchi N., Yokoyama M., Martens K., de Perio P., Vagins M. R., Kuze M., Izumiyama S., Inomoto M., Ishitsuka M., Ito H., Kinoshita T., Ommura Y., Shigeta N., Shinoki M., Suganuma T., Yamauchi K., Martin J. F., Tanaka H. A., Towstego T., Akutsu R., Gousy-Leblanc V, Hartz M., Konaka A., Li X., Prouse N. W., Chen S., Xu B. D., Zhang B., Posiadala-Zezula M., Boyd S. B., Hadley D., Nicholson M., O'Flaherty M., Richards B., Ali A., Jamieson B., Marti Ll, Minamino A., Pintaudi G., Sano S., Suzuki S., Wada K.

PHYSICAL REVIEW D Vol. 106 ( 7 ) 2022.10

Searching for Supernova Bursts in Super-Kamiokande IV Reviewed International coauthorship International journal

Mori M., Abe K., Hayato Y., Hiraide K., Ieki K., Ikeda M., Imaizumi S., Kameda J., Kanemura Y., Kaneshima R., Kashiwagi Y., Kataoka Y., Miki S., Mine S., Miura M., Moriyama S., Nagao Y., Nakahata M., Nakano Y., Nakayama S., Noguchi Y., Okada T., Okamoto K., Orii A., Sato K., Sekiya H., Shiba H., Shimizu K., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Tomiya T., Watanabe S., Yano T., Yoshida S., Han S., Kajita T., Okumura K., Tashiro T., Wang X., Xia J., Megias G. D., Bravo-Berguno D., Fernandez P., Labarga L., Ospina N., Zaldivar B., Zsoldos S., Pointon B. W., Blaszczyk F. D. M., Kearns E., Raaf J. L., Stone J. L., Wan L., Wester T., Bian J., Griskevich N. J., Kropp W. R., Locke S., Smy M. B., Sobel H. W., Takhistov V, Yankelevich A., Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Mueller Th A., Paganini P., Quilain B., Santos A. D., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Anthony L. H. V, Martin D., Scott M., Sztuc A. A., Uchida Y., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Mattiazzi M., Ludovici L., Gonin M., Pronost G., Maekawa Y., Nishimura Y., Fujisawa C., Friend M., Hasegawa T., Ishida T., Kobayashi T., Jakkapu M., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Ozaki H., Shiozawa T., Suzuki A. T., Takeuchi Y., Yamamoto S., Kotsar Y., Ashida Y., Bronner C., Feng J., Hirota S., Kikawa T., Nakaya T., Wendell R. A., Yasutome K., McCauley N., Mehta P., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Ninomiya K., Niwa T., Tsukada M., Lagoda J., Lakshmi S. M., Mijakowski P., Zalipska J., Mandal M., Prabhu Y. S., Jiang J., Jung C. K., Vilela C., Wilking M. J., Yanagisawa C., Jia M., Hagiwara K., Harada M., Horai T., Ishino H., Ito S., Kitagawa H., Koshio Y., Ma W., Nakanishi F., Piplani N., Sakai S., Barr G., Barrow D., Cook L., Samani S., Wark D., Nova F., Boschi T., Gao J., Goldsack A., Katori T., Di Lodovico F., Migenda J., Taani M., Zsoldos S., Yang J. Y., Jenkins S. J., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Kim S. B., Seo J. W., Yu I, Nishijima K., Koshiba M., Nakagiri K., Nakajima Y., Iwamoto K., Taniuchi N., Yokoyama M., Martens K., de Perio P., Vagins M. R., Kuze M., Izumiyama S., Yoshida T., Inomoto M., Ishitsuka M., Ito H., Kinoshita T., Matsumoto R., Ohta K., Ommura Y., Shigeta N., Shinoki M., Suganuma T., Yamauchi K., Martin J. F., Tanaka H. A., Towstego T., Akutsu R., Gousy-Leblanc V, Hartz M., Konaka A., Prouse N. W., Chen S., Xu B. D., Zhang B., Posiadala-Zezula M., Hadley D., Nicholson M., O'Flaherty M., Richards B., Ali A., Jamieson B., Walker J., Marti Ll, Minamino A., Okamoto K., Pintaudi G., Sasaki R., Sano S., Suzuki S., Wada K., Cao S., Ichikawa A., Nakamura K. D., Tairafune S., Choi K.

ASTROPHYSICAL JOURNAL Vol. 938 ( 1 ) 2022.10

Neutron tagging following atmospheric neutrino events in a water Cherenkov detector Reviewed International coauthorship International journal

Abe K., Haga Y., Hayato Y., Hiraide K., Ieki K., Ikeda M., Imaizumi S., Iyogi K., Kameda J., Kanemura Y., Kataoka Y., Kato Y., Kishimoto Y., Miki S., Mine S., Miura M., Mochizuki T., Moriyama S., Nagao Y., Nakahata M., Nakajima T., Nakano Y., Nakayama S., Okada T., Okamoto K., Orii A., Sato K., Sekiya H., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Tasaka S., Tomura T., Ueno K., Watanabe S., Yano T., Yokozawa T., Han S., Irvine T., Kajita T., Kametani I, Kaneyuki K., Lee K. P., McLachlan T., Okumura K., Richard E., Tashiro T., Wang R., Xia J., Megias G. D., Bravo-Berguno D., Labarga L., Zaldivar B., Goldhaber M., Blaszczyk F. D. M., Gustafson J., Kachulis C., Kearns E., Raaf J. L., Stone J. L., Sulak L. R., Sussman S., Wan L., Wester T., Pointon B. W., Bian J., Carminati G., Elnimr M., Griskevich N. J., Kropp W. R., Locke S., Renshaw A., Smy M. B., Sobel H. W., Takhistov V, Weatherly P., Ganezer K. S., Hartfiel B. L., Hill J., Keig W. E., Hong N., Kim J. Y., Lim I. T., Park R. G., Akiri T., Bodur B., Himmel A., Li Z., O'Sullivan E., Scholberg K., Walter C. W., Wongjirad T., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Imber J., Mueller Th A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Choi K., Learned J. G., Matsuno S., Smith S. N., Amey J., Anthony L. H. V, Litchfield R. P., Ma W. Y., Marin D., Sztuc A. A., Uchida Y., Wascko M. O., Berardi V, Catanesi M. G., Intonti R. A., Radicioni E., Calabria N. F., De Rosa G., Machado L. N., Collazuol G., Iacob F., Lamoureux M., Ospina N., Ludovici L., Gonin M., Pronost G., Maekawa Y., Nishimura Y., Cao S., Friend M., Hasegawa T., Ishida T., Ishii T., Jakkapu M., Kobayashi T., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Boschi T., Di Lodovico F., Migenda J., Sedgwick S. Molina, Taani M., Zsoldos S., Abe K. E., Hasegawa M., Isobe Y., Kotsar Y., Miyabe H., Ozaki H., Shiozawa T., Sugimoto T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Bronner C., Feng J., Hayashino T., Hiraki T., Hirota S., Huang K., Jiang M., Kikawa T., Mori M., Murakami A., Nakamura Ke, Nakaya T., Patel N. D., Suzuki K., Takahashi S., Tateishi K., Wendell R. A., Yasutome K., Fernandez P., McCauley N., Mehta P., Pritchard A., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Mitsuka G., Murase M., Muto F., Niwa T., Suzuki T., Tsukada M., Frankiewicz K., Mijakowski P., Hignight J., Jiang J., Jung C. K., Li X., Palomino J. L., Santucci G., Vilela C., Wilking M. J., Yanagisawa C., Fukuda D., Hagiwara K., Harada M., Horai T., Ishino H., Ito S., Kayano T., Kibayashi A., Kitagawa H., Koshio Y., Ma W., Mori T., Nagata H., Piplani N., Sakai S., Sakuda M., Takahira Y., Xu C., Yamaguchi R., Kuno Y., Barr G., Barrow D., Cook L., Goldsack A., Samani S., Simpson C., Wark D., Nova F., Tacik R., Yang J. Y., Cole A., Jenkins S. J., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Choi Y., Kim S. B., Yu I, Ichikawa A. K., Nakamura K., Ito K., Nishijima K., Calland R. G., de Perio P., Martens K., Murdoch M., Vagins M. R., Koshiba M., Totsuka Y., Iwamoto K., Nakajima Y., Ogawa N., Suda Y., Yokoyama M., Hamabe D., Izumiyama S., Kuze M., Okajima Y., Tanaka M., Yoshida T., Inomoto M., Ishitsuka M., Ito H., Matsumoto R., Ohta K., Shinoki M., Martin J. F., Nantais C. M., Tanaka H. A., Towstego T., Akutsu R., Hartz M., Konaka A., Prouse N. W., Chen S., Xu B. D., Zhang Y., Berkman S., Tobayama S., Connolly K., Wilkes R. J., Posiadala-Zezula M., Hadley D., Richards B., Jamieson B., Walker J., Marti Ll, Minamino A., Okamoto K., Pintaudi G., Sano S., Sasaki R.

JOURNAL OF INSTRUMENTATION Vol. 17 ( 10 ) 2022.10

Pre-supernova Alert System for Super-Kamiokande Reviewed International coauthorship International journal

Machado L. N., Abe K., Hayato Y., Hiraide K., Ieki K., Ikeda M., Kameda J., Kanemura Y., Kaneshima R., Kashiwagi Y., Kataoka Y., Miki S., Mine S., Miura M., Moriyama S., Nakano Y., Nakahata M., Nakayama S., Noguchi Y., Okamoto K., Sato K., Sekiya H., Shiba H., Shimizu K., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Watanabe S., Yano T., de Perio P., Martens K., Vagins M. R., Bian J., Griskevich N. J., Kropp W. R., Locke S., Smy M. B., Sobel H. W., Takhistov V, Yankelevich A., Han S., Kajita T., Okumura K., Tashiro T., Tomiya T., Wang X., Xia J., Yoshida S., Megias G. D., Fernandez P., Labarga L., Ospina N., Zaldivar B., Pointon B. W., Akutsu R., Gousy-Leblanc V, Hartz M., Konaka A., Prouse N. W., Kearns E., Raaf J. L., Wan L., Wester T., Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Mueller Th A., Santos A. D., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Cao S., Choi K., Anthony L. H. V, Martin D., Scott M., Sztuc A. A., Uchida Y., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Mattiazzi M., Ludovici L., Gonin M., Pronost G., Fujisawa C., Maekawa Y., Nishimura Y., Sasaki R., Friend M., Hasegawa T., Ishida T., Jakkapu M., Kobayashi T., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Boschi T., Di Lodovico F., Gao J., Goldsack A., Katori T., Migenda J., Taani M., Zsoldos S., Kotsar Y., Ozaki H., Suzuki A. T., Takeuchi Y., Yaamoto S., Bronner C., Feng J., Kikawa T., Mori M., Nakaya T., Wendell R. A., Yasutome K., Jenkins S. J., McCauley N., Mehta P., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Ninomiya K., Lagoda J., Lakshmi S. M., Mandal M., Mijakowski P., Prabhu Y. S., Zalipska J., Jia M., Jiang J., Jung C. K., Wilking M. J., Yanagisawa C., Harada M., Ishino H., Ito S., Kitagawa H., Koshio Y., Ma W., Nakanishi F., Sakai S., Barr G., Barrow D., Cook L., Samani S., Wark D., Nova F., Yang J. Y., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Kim S. B., Seo J. W., Yu I, Ichikawa A. K., Nakamura K. D., Tairafune S., Nishijima K., Iwamoto K., Nakagiri K., Nakajima Y., Taniuchi N., Yokoyama M., Izumiyama S., Kuze M., Inomoto M., Ishitsuka M., Ito H., Kinoshita T., Matsumoto R., Ommura Y., Shigeta N., Shinoki M., Suganuma T., Yonenaga M., Martin J. F., Tanaka H. A., Towstego T., Chen S., Xu B. D., Zhang B., Posiadala-Zezula M., Hadley D., Nicholson M., Richards B., Ali A., Jamieson B., Marti Ll, Minamino A., Pintaudi G., Sano S., Suzuki S., Wada K.

ASTROPHYSICAL JOURNAL Vol. 935 ( 1 ) 2022.8

Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV Reviewed International coauthorship International journal

Astroparticle Physics Vol. 139 2022.6

Language：English Publishing type：Research paper (scientific journal) Publisher：Astroparticle Physics

Due to a very low production rate of electron anti-neutrinos (ν̄e) via nuclear fusion in the Sun, a flux of solar ν̄e is unexpected. An appearance of ν̄e in solar neutrino flux opens a new window for the new physics beyond the standard model. In particular, a spin-flavor precession process is expected to convert an electron neutrino into an electron anti-neutrino (νe→ν̄e) when neutrino has a finite magnetic moment. In this work, we have searched for solar ν̄e in the Super-Kamiokande experiment, using neutron tagging to identify their inverse beta decay signature. We identified 78 ν̄e candidates for neutrino energies of 9.3 to 17.3 MeV in 2970.1 live days with a fiducial volume of 22.5 kiloton water (183.0 kton⋅year exposure). The energy spectrum has been consistent with background predictions and we thus derived a 90% confidence level upper limit of 4.7×10−4 on the νe→ν̄e conversion probability in the Sun. We used this result to evaluate the sensitivity of future experiments, notably the Super-Kamiokande Gadolinium (SK-Gd) upgrade.

DOI： 10.1016/j.astropartphys.2022.102702

Scopus

COSMOS X as a general purpose air shower simulation tool International journal

Sako T., Fujii T., Kasahara K., Menjo H., Sakaki N., Sakurai N., Taketa A., Tameda Y.

Proceedings of Science Vol. 395 2022.3

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

An air shower simulation package COSMOS was born in 1970's and has been continuously developed. A recent major update enables particle tracking not only in the atmosphere but also in arbitrary gas, liquid and solid materials by combining with the EPICS detector simulation package. This paper describes the properties of this extended version of COSMOS, namely COSMOS X. Combination of gas, liquid and solid materials in spherical shells with a common center can be defined as environment. Users can also arbitrary define the electric and magnetic fields. These features allow shower simulations even in the soil, concrete, sea and ice. Also simulations at the Sun and the Mars are possible applications. Flexible input/output control since the previous versions of COSMOS, a set of user hook functions, is also available. In the predefined user functions, information of each particle in transportation can be easily accessed and users can extract information from them. General introduction to COSMOS and new functions of COSMOS X together with some interesting application cases will be presented in this paper.

Scopus

Very-forward π0 production cross section in proton-proton collisions at √s = 13 TeV measured with the LHCf experiment International coauthorship International journal

Tiberio A., Adriani O., Berti E., Bonechi L., Bongi M., D’Alessandro R., Castellini G., Haguenauer M., Itow Y., Kasahara K., Kondo M., Matsubara Y., Menjo H., Muraki Y., Ohashi K., Papini P., Ricciarini S., Sako T., Sakurai N., Sato K., Shimizu Y., Tamura T., Torii S., Tricomi A., Turner W.C., Ueno M., Yoshida K.

Proceedings of Science Vol. 395 2022.3

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

The LHCf experiment, situated at the LHC accelerator, is composed of two independent detectors located at 140 metres from the ATLAS interaction point (IP1) on opposite sides along the beam axis. LHCf covers the pseudorapidity region above 8.4, with the capability to measure zero-degree neutral particles. The physics motivation of the experiment is to test the hadronic interaction models commonly used in ground-based cosmic rays experiments to simulate air-showers induced by ultra-high-energy cosmic rays (UHECR) in the Earth atmosphere. The data from accelerator experiments are very important for the tuning of these phenomenological models in order to reduce the systematic uncertainty of UHECR measurements. A precise measurement of the π0s produced in the very-forward region in high energy collisions provides the possibility to study the electromagnetic component of secondary particles produced in the first interaction of a UHECR with the atmosphere. In this contribution the preliminary results from the π0 analysis of the data acquired in proton-proton collisions at √s = 13 TeV will be presented. The Feynman-x and transverse momentum spectra obtained with the two detectors will be compared to show the consistency of the results.

Scopus

First gadolinium loading to Super-Kamiokande Reviewed International coauthorship International journal

Abe K., Bronner C., Hayato Y., Hiraide K., Ikeda M., Imaizumi S., Kameda J., Kanemura Y., Kataoka Y., Miki S., Miura M., Moriyama S., Nagao Y., Nakahata M., Nakayama S., Okada T., Okamoto K., Orii A., Pronost G., Sekiya H., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Watanabe S., Yano T., Han S., Kajita T., Okumura K., Tashiro T., Xia J., Megias G. D., Bravo-Berguno D., Labarga L., Marti Ll, Zaldivar B., Pointon B. W., Blaszczyk F. D. M., Kearns E., Raaf J. L., Stone J. L., Wan L., Wester T., Bian J., Griskevich N. J., Kropp W. R., Locke S., Mine S., Smy M. B., Sobel H. W., Takhistov V, Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Gonin M., Mueller Th A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Anthony L. H. V, Martin D., Scott M., Sztuc A. A., Uchida Y., Cao S., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Mattiazzi M., Ospina N., Ludovici L., Maekawa Y., Nishimura Y., Friend M., Hasegawa T., Ishida T., Kobayashi T., Jakkapu M., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Boschi T., Gao J., Di Lodovico F., Migenda J., Taani M., Zsoldos S., Kotsar Y., Nakano Y., Ozaki H., Shiozawa T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Feng J., Hirota S., Kikawa T., Mori M., Nakaya T., Wendell R. A., Yasutome K., Fernandez P., McCauley N., Mehta P., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Niwa T., Sato K., Tsukada M., Lagoda J., Lakshmi S. M., Mijakowski P., Zalipska J., Jiang J., Jung C. K., Vilela C., Wilking M. J., Yanagisawa C., Hagiwara K., Harada M., Horai T., Ishino H., Ito S., Kitagawa F., Koshio Y., Ma W., Piplani N., Sakai S., Barr G., Barrow D., Cook L., Goldsack A., Samani S., Wark D., Nova F., Yang J. Y., Jenkins S. J., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Kim S. B., Seo J. W., Yu I, Ichikawa A. K., Nakamura K., Nishijima K., Koshiba M., Iwamoto K., Nakajima Y., Ogawa N., Yokoyama M., Martens K., Vagins M. R., Kuze M., Izumiyama S., Yoshida T., Inomoto M., Ishitsuka M., Ito H., Kinoshita T., Matsumoto R., Ohta K., Shinoki M., Suganuma T., Martin J. F., Tanaka H. A., Towstego T., Akutsu R., Hartz M., Konaka A., de Perio P., Prouse N. W., Chen S., Xu B. D., Posiadala-Zezula M., Hadley D., O'Flaherty M., Richards B., Jamieson B., Walker J., Minamino A., Okamoto K., Pintaudi G., Sano S., Sasaki R.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT Vol. 1027 2022.3

Diffuse supernova neutrino background search at Super-Kamiokande Reviewed International coauthorship International journal

Abe K., Bronner C., Hayato Y., Hiraide K., Ikeda M., Imaizumi S., Kameda J., Kanemura Y., Kataoka Y., Miki S., Miura M., Moriyama S., Nagao Y., Nakahata M., Nakayama S., Okada T., Okamoto K., Orii A., Pronost G., Sekiya H., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Watanabe S., Yano T., Han S., Kajita T., Okumura K., Tashiro T., Xia J., Megias G. D., Bravo-Berguno D., Labarga L., Marti Ll, Zaldivar B., Pointon B. W., Blaszczyk F. D. M., Kearns E., Raaf J. L., Stone J. L., Wan L., Wester T., Bian J., Griskevich N. J., Kropp W. R., Locke S., Mine S., Smy M. B., Sobel H. W., Takhistov V, Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Cao S., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Gonin M., Mueller Th A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Anthony L. H. V, Martin D., Scott M., Sztuc A. A., Uchida Y., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Mattiazzi M., Ospina N., Ludovici L., Maekawa Y., Nishimura Y., Friend M., Hasegawa T., Ishida T., Kobayashi T., Jakkapu M., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Kotsar Y., Nakano Y., Ozaki H., Shiozawa T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Feng J., Hirota S., Kikawa T., Mori M., Nakaya T., Wendell R. A., Yasutome K., Fernandez P., McCauley N., Mehta P., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Niwa T., Sato K., Tsukada M., Lagoda J., Lakshmi S. M., Mijakowski P., Zalipska J., Jiang J., Jung C. K., Vilela C., Wilking M. J., Yanagisawa C., Hagiwara K., Harada M., Horai T., Ishino H., Ito S., Kitagawa H., Koshio Y., Ma W., Piplani N., Sakai S., Barr G., Barrow D., Cook L., Goldsack A., Samani S., Wark D., Nova F., Boschi T., Di Lodovico F., Gao J., Migenda J., Taani M., Zsoldos S., Yang J. Y., Jenkins S. J., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Kim S. B., Seo J. W., Yu I, Nishijima K., Koshiba M., Iwamoto K., Nakagiri K., Nakajima Y., Ogawa N., Yokoyama M., Martens K., Vagins M. R., Kuze M., Izumiyama S., Yoshida T., Inomoto M., Ishitsuka M., Ito H., Kinoshita T., Matsumoto R., Ohta K., Shinoki M., Suganuma T., Ichikawa A. K., Nakamura K., Martin J. F., Tanaka H. A., Towstego T., Akutsu R., Gousy-Leblanc V, Hartz M., Konaka A., de Perio P., Prouse N. W., Chen S., Xu B. D., Zhang Y., Posiadala-Zezula M., Hadley D., O'Flaherty M., Richards B., Jamieson B., Walker J., Minamino A., Okamoto K., Pintaudi G., Sano S., Sasaki R.

PHYSICAL REVIEW D Vol. 104 ( 12 ) 2021.12

Search for tens of MeV neutrinos associated with gamma-ray bursts in Super-Kamiokande Reviewed International coauthorship International journal

Abe K., Bronner C., Hayato Y., Ikeda M., Imaizumi S., Ito H., Kameda J., Kataoka Y., Kato Y., Kishimoto Y., Miura M., Moriyama S., Mochizuki T., Nagao Y., Nakahata M., Nakajima Y., Nakayama S., Okada T., Okamoto K., Pronost G., Sekiya H., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Yano T., Han S., Kajita T., Okumura K., Tashiro T., Wang R., Xia J., Megias G. D., Bravo-Berguno D., Labarga L., Marti Ll, Zaldivar B., Blaszczyk F. D. M., Kearns E., Raaf J. L., Stone J. L., Wan L., Wester T., Pointon B. W., Bian J., Griskevich N. J., Kropp W. R., Locke S., Mine S., Smy M. B., Sobel H. W., Takhistov V, Weatherly P., Ganezer K. S., Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Gonin M., Mueller Th A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Matsuno S., Anthony L. H. V, Litchfield R. P., Sztuc A. A., Uchida Y., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Ospina N., Ludovici L., Nishimura Y., Cao S., Friend M., Hasegawa T., Ishida T., Kobayashi T., Jakkapu M., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Boschi T., Di Lodovico F., Sedgwick S. Molina, Taani M., Zsoldos S., Hasegawa M., Isobe Y., Miyabe H., Nakano Y., Shiozawa T., Sugimoto T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Feng J., Hirota S., Jiang M., Ichikawa A. K., Kikawa T., Mori M., Nakamura K. E., Nakaya T., Wendell R. A., Yasutome K., Fernandez P., McCauley N., Mehta P., Pritchard A., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Niwa T., Sato K., Tsukada M., Mijakowski P., Frankiewicz K., Jung C. K., Vilela C., Wilking M. J., Yanagisawa C., Fukuda D., Harada M., Hagiwara K., Horai T., Ishino H., Ito S., Koshio Y., Ma W., Piplani N., Sakai S., Sakuda M., Takahira Y., Xu C., Kuno Y., Barr G., Barrow D., Cook L., Goldsack A., Samani S., Simpson C., Wark D., Nova F., Yang J. Y., Jenkins S. J., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Choi Y., Kim S. B., Yu I, Nishijima K., Koshiba M., Iwamoto K., Ogawa N., Yokoyama M., Martens K., Vagins M. R., Izumiyama S., Kuze M., Tanaka M., Yoshida T., Inomoto M., Ishitsuka M., Matsumoto R., Ohta K., Shinoki M., Martin J. F., Nantais C. M., Tanaka H. A., Towstego T., Akutsu R., Hartz M., Konaka A., de Perio P., Prouse N. W., Chen S., Xu B. D., Posiadala-Zezula M., Richards B., Jamieson B., Walker J., Minamino A., Okamoto K., Pintaudi G., Sasaki R.

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS Vol. 2021 ( 10 ) 2021.10

Search for Neutrinos in Coincidence with Gravitational Wave Events from the LIGO-Virgo O3a Observing Run with the Super-Kamiokande Detector Reviewed International coauthorship International journal

Abe K., Bronner C., Hayato Y., Ikeda M., Imaizumi S., Kameda J., Kanemura Y., Kataoka Y., Miki S., Miura M., Moriyama S., Nagao Y., Nakahata M., Nakayama S., Okada T., Okamoto K., Orii A., Pronost G., Sekiya H., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Watanabe S., Yano T., Han S., Kajita T., Okumura K., Tashiro T., Wang R., Xia J., Megias G. D., Bravo-Berguno D., Labarga L., Marti Ll., Zaldivar B., Pointon B. W., Blaszczyk F. d. M., Kearns E., Raaf J. L., Stone J. L., Wan L., Wester T., Bian J., Griskevich N. J., Kropp W. R., Locke S., Mine S., Smy M. B., Sobel H. W., Takhistov V., Weatherly P., Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Bernard L., Coffani A., Drapier O., El Hedri S., Giampaolo A., Gonin M., Mueller Th. A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Anthony L. H. V., Martin D. G. R., Sztuc A. A., Uchida Y., Berardi V., Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Ospina N., Ludovici L., Maekawa Y., Nishimura Y., Cao S., Friend M., Hasegawa T., Ishida T., Jakkapu M., Kobayashi T., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Kotsar Y., Nakano Y., Ozaki H., Shiozawa T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Feng J., Hirota S., Kikawa T., Mori M., Nakaya T., Wendell R. A., Yasutome K., Fernandez P., McCauley N., Mehta P., Pritchard A., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Niwa T., Sato K., Tsukada M., Mijakowski P., Jiang J., Jung C. K., Vilela C., Wilking M. J., Yanagisawa C., Hagiwara K., Harada M., Horai T., Ishino H., Ito S., Koshio Y., Kitagawa H., Ma W., Piplani N., Sakai S., Kuno Y., Barr G., Barrow D., Cook L., Goldsack A., Samani S., Simpson C., Wark D., Nova F., Boschi T., Di Lodovico F., Migenda J., Molina Sedgwick S., Taani M., Zsoldos S., Yang J. Y., Jenkins S. J., Malek M., McElwee J. M., Stone O., Thiesse M. D., Thompson L. F., Okazawa H., Kim S. B., Yu I., Nishijima K., Koshiba M., Iwamoto K., Nakajima Y., Ogawa N., Yokoyama M., Martens K., Vagins M. R., Izumiyama S., Kuze M., Tanaka M., Yoshida T., Inomoto M., Ishitsuka M., Ito H., Matsumoto R., Ohta K., Shinoki M., Martin J. F., Tanaka H. A., Towstego T., Akutsu R., Hartz M., Konaka A., de Perio P., Prouse N. W., Chen S., Xu B. D., Posiadala-Zezula M., Hadley D., Richards B., Jamieson B., Walker J., Minamino A., Okamoto K., Pintaudi G., Sano S., Sasaki R., Ichikawa A. K., Nakamura K.

ASTROPHYSICAL JOURNAL Vol. 918 ( 2 ) 2021.9

The energy spectrum of forward photons measured by the RHICf experiment in √s = 510 GeV proton-proton collisions International coauthorship International journal

Sato K., Itow Y., Menjo H., Ueno M., Ohashi K., Sako T., Goto Y., Nakagawa I., Saidl R., Park J.S., Kim M.H., Hong B., Tanida K., Torii S., Kasahara K., Sakurai N., Adriani O., D'Alessandro R., Bonechi L., Berti E., Tricomi A.

Proceedings of Science Vol. 358 2021.7

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

The Relativistic Heavy Ion Collider forward (RHICf) experiment aims at understanding the high-energy hadronic interaction by measuring the cross sections of very forward neutral particles in proton-proton collisions at √s = 510 GeV. For the analysis of the photon measurement, the trigger efficiency and the particle identification performance are studied by using the Monte Carlo simulation data and the experimental data. In the RHICf operation, two kinds of trigger modes (Shower, HighEM) were implemented. The trigger efficiency of the Shower trigger is 100% for photons with the energies more than 20 GeV. The HighEM trigger is designed to detect high energy photons effectively, and the trigger efficiency of the HighEM trigger is 90% for photons with the energies more than 130 GeV. The correction factor for the photon identification is calculated by using the efficiency and purity. It is found that this correction does not make a sizeable effect on the shape of the energy spectrum because the energy dependency of the factor is small.

Scopus

Supernova Model Discrimination with Hyper-Kamiokande Reviewed International coauthorship International journal

Abe K., Adrich P., Aihara H., Akutsu R., Alekseev I, Ali A., Ameli F., Anghel I, Anthony L. H. V, Antonova M., Araya A., Asaoka Y., Ashida Y., Aushev V, Ballester F., Bandac I, Barbi M., Barker G. J., Barr G., Batkiewicz-Kwasniak M., Bellato M., Berardi V, Bergevin M., Bernard L., Bernardini E., Berns L., Bhadra S., Bian J., Blanchet A., Blaszczyk F. D. M., Blondel A., Boiano A., Bolognesi S., Bonavera L., Booth N., Borjabad S., Boschi T., Bose D., Bozza C., Bravar A., Bravo-Berguno D., Bronner C., Brown L., Bubak A., Buchowicz A., Avanzini M. Buizza, Cafagna F. S., Calabria N. F., Calvo-Mozota J. M., Cao S., Cartwright S. L., Carroll A., Catanesi M. G., Cebrian S., Chabera M., Chakraborty S., Checchia C., Choi J. H., Choubey S., Cicerchia M., Coleman J., Collazuol G., Cook L., Cowan G., Cuen-Rochin S., Danilov M., Daz Lopez G., De la Fuente E., de Perio P., De Rosa G., Dealtry T., Densham C. J., Dergacheva A., Deshmukh N., Devi M. M., Di Lodovico F., Di Meo P., Di Palma I, Doyle T. A., Drakopoulou E., Drapier O., Dumarchez J., Dunne P., Dziewiecki M., Eklund L., El Hedri S., Ellis J., Emery S., Esmaili A., Esteve R., Evangelisti A., Feely M., Fedotov S., Feng J., Fernandez P., Fernandez-Martinez E., Ferrario P., Ferrazzi B., Feusels T., Finch A., Finley C., Fiorentini A., Fiorillo G., Fitton M., Frankiewicz K., Friend M., Fujii Y., Fukuda Y., Galinski G., Gao J., Garde C., Garfagnini A., Garode S., Gialanella L., Giganti C., Gomez-Cadenas J. J., Gonin M., Gonzalez-Nuevo J., Gorin A., Gornea R., Gousy-Leblanc V, Gramegna F., Grassi M., Grella G., Guigue M., Gumplinger P., Hadley D. R., Harada M., Hartfiel B., Hartz M., Hassani S., Hastings N. C., Hayato Y., Hernando-Morata J. A., Herrero V, Hill J., Hiraide K., Hirota S., Holin A., Horiuchi S., Hoshina K., Hultqvist K., Iacob F., Ichikawa A. K., Ibnsalih W. Idrissi, Iijima T., Ikeda M., Inomoto M., Inoue K., Insler J., Ioannisian A., Ishida T., Ishidoshiro K., Ishino H., Ishitsuka M., Ito H., Ito S., Itow Y., Iwamoto K., Izmaylov A., Izumi N., Izumiyama S., Jakkapu M., Jamieson B., Jang H. I, Jang J. S., Jenkins S. J., Jeon S. H., Jiang M., Jo H. S., Jonsson P., Joo K. K., Kajita T., Kakuno H., Kameda J., Kano Y., Kalaczynski P., Karlen D., Kasperek J., Kataoka Y., Kato A., Katori T., Kazarian N., Kearns E., Khabibullin M., Khotjantsev A., Kikawa T., Kikec M., Kim J. H., Kim J. Y., Kim S. B., Kim S. Y., King S., Kinoshita T., Kisiel J., Klekotko A., Kobayashi T., Koch L., Koga M., Koerich L., Kolev N., Konaka A., Kormos L. L., Koshio Y., Korzenev A., Kotsar Y., Kouzakov K. A., Kowalik K. L., Kravchuk L., Kryukov A. P., Kudenko Y., Kumita T., Kurjata R., Kutter T., Kuze M., Kwak K., La Commara M., Labarga L., Lagoda J., James M. Lamers, Lamoureux M., Laveder M., Lavitola L., Lawe M., Learned J. G., Lee J., Leitner R., Lezaun V, Lim I. T., Lindner T., Litchfield R. P., Long K. R., Longhin A., Loverre P., Lu X., Ludovici L., Maekawa Y., Magaletti L., Magar K., Mahn K., Makida Y., Malek M., Malinsky M., Marchi T., Maret L., Mariani C., Marinelli A., Martens K., Marti Ll, Martin J. F., Martin D., Marzec J., Matsubara T., Matsumoto R., Matsuno S., Matusiak M., Mazzucato E., McCarthy M., McCauley N., McElwee J., McGrew C., Mefodiev A., Medhi A., Mehta P., Mellet L., Menjo H., Mermod P., Metelko C., Mezzetto M., Migenda J., Migliozzi P., Mijakowski P., Miki S., Miller E. W., Minakata H., Minamino A., Mine S., Mineev O., Mitra A., Miura M., Moharana R., Mollo C. M., Mondal T., Mongelli M., Monrabal F., Moon D. H., Moon C. S., Mora F. J., Moriyama S., Mueller Th A., Munteanu L., Murase K., Nagao Y., Nakadaira T., Nakagiri K., Nakahata M., Nakai S., Nakajima Y., Nakamura K., Nakamura Ki, Nakamura H., Nakano Y., Nakaya T., Nakayama S., Nakayoshi K., Machado L. Nascimento, Naseby C. E. R., Navarro-Garcia B., Needham M., Nicholls T., Niewczas K., Nishimura Y., Noah E., Nova F., Nugent J. C., Nunokawa H., Obrebski W., Ochoa-Ricoux J. P., O'Connor E., Ogawa N., Ogitsu T., Ohta K., Okamoto K., O'Keeffe H. M., Okumura K., Onishchuk Y., Orozco-Luna F., Oshlianskyi A., Ospina N., Ostrowski M., O'Sullivan E., O'Sullivan L., Ovsiannikova T., Oyama Y., Ozaki H., Pac M. Y., Paganini P., Palladino V, Paolone V, Pari M., Parsa S., Pasternak J., Pastore C., Pastuszak G., Patel D. A., Pavin M., Payne D., Pena-Garay C., Pidcott C., Guerra E. Pinzon, Playfer S., Pointon B. W., Popov A., Popov B., Porwit K., Posiadala-Zezula M., Poutissou J-M, Pozimski J., Pronost G., Prouse N. W., Przewlocki P., Quilain B., Quiroga A. A., Radicioni E., Radics B., Rajda P. J., Renner J., Rescigno M., Retiere F., Ricciardi G., Riccio C., Richards B., Rondio E., Rose H. J., Roskovec B., Roth S., Rott C., Rountree S. D., Rubbia A., Ruggeri A. C., Ruggles C., Russo S., Rychter A., Ryu D., Sakashita K., Samani S., Sanchez F., Sanchez M. L., Sanchez M. C., Sano S., Santos J. D., Santucci G., Sarmah P., Sashima I, Sato K., Scott M., Seiya Y., Sekiguchi T., Sekiya H., Seo J. W., Seo S. H., Sgalaberna D., Shaikhiev A., Shan Z., Shaykina A., Shimizu I, Shin C. D., Shinoki M., Shiozawa M., Sinnis G., Skrobova N., Skwarczynski K., Smy M. B., Sobczyk J., Sobel H. W., Soler F. J. P., Sonoda Y., Spina R., Spisso B., Spradlin P., Stankevich K. L., Stawarz L., Stellacci S. M., Stopa K., Studenikin A. I, Suarez Gomez S. L., Suganuma T., Suvorov S., Suwa Y., Suzuki A. T., Suzuki S. Y., Suzuki Y., Svirida D., Svoboda R., Taani M., Tada M., Takeda A., Takemoto Y., Takenaka A., Taketa A., Takeuchi Y., Takhistov V, Tanaka H., Tanaka H. A., Tanaka H. I, Tanaka M., Tashiro T., Thiesse M., Thompson L. F., Toledo J., Tomatani-Sanchez A. K., Tortone G., Tsui K. M., Tsukamoto T., Tzanov M., Uchida Y., Vagins M. R., Valder S., Valentino V., Vasseur G., Vijayvargi A., Vilela C., Vinning W. G. S., Vivolo D., Vladisavljevic T., Vogelaar R. B., Vyalkov M. M., Wachala T., Walker J., Wark D., Wascko M. O., Wendell R. A., Wilkes R. J., Wilking M. J., Wilson J. R., Wronka S., Xia J., Xie Z., Xin T., Yamaguchi Y., Yamamoto K., Yanagisawa C., Yano T., Yen S., Yershov N., Yeum D. N., Yokoyama M., Yonenaga M., Yoo J., Yu I, Yu M., Zakrzewski T., Zaldivar B., Zalipska J., Zaremba K., Zarnecki G., Ziembicki M., Zietara K., Zito M., Zsoldos S.

ASTROPHYSICAL JOURNAL Vol. 916 ( 1 ) 2021.7

Simulation study on the effects of diffractive collisions on the prediction of the observables in ultra-high-energy cosmic-ray experiments Reviewed International coauthorship International journal

Ohashi Ken, Menjo Hiroaki, Itow Yoshitaka, Sako Takashi, Kasahara Katsuaki

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS Vol. 2021 ( 3 ) 2021.3

Neutron-antineutron oscillation search using a 0.37 megaton-years exposure of Super-Kamiokande Reviewed International coauthorship International journal

Abe K., Bronner C., Hayato Y., Ikeda M., Imaizumi S., Ito H., Kameda J., Kataoka Y., Miura M., Moriyama S., Nagao Y., Nakahata M., Nakajima Y., Nakayama S., Okada T., Okamoto K., Orii A., Pronost G., Sekiya H., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Takenaka A., Tanaka H., Yano T., Akutsu R., Han S., Kajita T., Okumura K., Tashiro T., Wang R., Xia J., Bravo-Berguno D., Labarga L., Marti L. L., Zaldivar B., Blaszczyk F. D. M., Kearns E., Gustafson J. D., Raaf J. L., Stone J. L., Wan L., Wester T., Bian J., Griskevich N. J., Kropp W. R., Locke S., Mine S., Smy M. B., Sobel H. W., Takhistov V, Weatherly P., Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Coffani A., Drapier O., El Hedri S., Giampaolo A., Gonin M., Mueller Th A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Anthony L. H. V, Sztuc A. A., Uchida Y., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Ospina N., Ludovici L., Nishimura Y., Cao S., Friend M., Hasegawa T., Ishida T., Kobayashi T., Matsubara T., Nakadaira T., Jakkapu M., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Nakano Y., Shiozawa T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Feng J., Hirota S., Ichikawa A. K., Kikawa T., Mori M., Nakaya T., Wendell R. A., Yasutome K., Fernandez P., McCauley N., Mehta P., Pritchard A., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Niwa T., Sato K., Tsukada M., Mijakowski P., Posiadala-Zezula M., Jung C. K., Vilela C., Wilking M. J., Yanagisawa C., Harada M., Hagiwara K., Horai T., Ishino H., Ito S., Koshio Y., Ma W., Piplani N., Sakai S., Kuno Y., Barr G., Barrow D., Cook L., Goldsack A., Samani S., Simpson C., Wark D., Nova F., Boschi T., Di Lodovico F., Sedgwick S. Molina, Taani M., Zsoldos S., Yang J. Y., Jenkins S. J., McElwee J. M., Thiesse M. D., Thompson L. F., Malek M., Stone O., Okazawa H., Kim S. B., Yu I, Nishijima K., Koshiba M., Ogawa N., Iwamoto K., Yokoyama M., Martens K., Vagins M. R., Kuze M., Izumiyama S., Tanaka M., Yoshida T., Inomoto M., Ishitsuka M., Matsumoto R., Ohta K., Shinoki M., Martin J. F., Tanaka H. A., Towstego T., Hartz M., Konaka A., de Perio P., Prouse N. W., Pointon B. W., Chen S., Xu B. D., Richards B., Jamieson B., Walker J., Minamino A., Okamoto K., Pintaudi G., Sasaki R.

PHYSICAL REVIEW D Vol. 103 ( 1 ) 2021.1

LHCf plan for proton-oxygen collisions at LHC

O. Adriani et al. (LHCf Collaboration)

Proceedings of Science Vol. 395 page： 348 2021

Upgrade of Honda atmospheric neutrino flux calculation with implementing recent hadron interaction measurements

Kazufumi Sato, Hiroaki Menjo, Yoshitaka Itow, Morihiro Honda

Proceedings of Science Vol. 395 page： 1210 2021

A simulation study for one-pion exchange contribution on very forward neutron productions in ATLAS-LHCf common events

Ken Ohashi, Hiroaki Menjo, Yoshitaka Itow, Takashi Sako

Proceedings of Science Vol. 395 page： 190 2021

Very-forward pi0 production cross section in proton-proton collisions at √s = 13 TeV measured with the LHCf experiment International coauthorship

Proceedings of Science Vol. 395 page： 386 2021

Status and Prospects of the LHCf and RHICf experiments

H. Menjo, et al.

Proceedings of Science Vol. 395 page： 301 2021

Results from the LHCf Run II in proton-proton collisions at vs = 13 TeV International coauthorship International journal

Tiberio A., Adriani O., Berti E., Bonechi L., Bongi M., D'Alessandro R., Castellini G., Haguenauer M., Itow Y., Kasahara K., Kondo M., Matsubara Y., Menjo H., Muraki Y., Ohashi K., Papini P., Ricciarini S., Sako T., Sakurai N., Sato K., Shimizu Y., Tamura T., Torii S., Tricomi A., Turner W.C., Ueno M., Yoshida K.

Proceedings of Science Vol. 398 2021

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

The LHCf experiment, at the Large Hadron Collider (LHC), consists of two small independent calorimeters placed 140 metres away, on opposite sides of the ATLAS interaction point (IP1). LHCf has the capability to measure zero-degree neutral particles, covering the pseudorapidity region above 8.4. By measuring the very-forward particle production rates at the highest energy possible at an accelerator, LHCf aims to improve our understanding of hadronic interactions in air-showers induced by ultra-high-energy cosmic rays in the atmosphere. This contribution will highlight recent results from Run II measurements with p-p collisions at 13 TeV. At first, the advantages of an ATLAS-LHCf combined analysis are discussed and a preliminary energy spectrum of very-forward photons produced in diffractive collisions as tagged by ATLAS is shown. The neutron energy spectrum measurements, for several pseudorapidity regions, are presented and compared with the predictions of various hadronic interaction models. From these measurements the average inelasticity of the collisions, which strongly affects the development of an air-shower, has also been extracted. Finally, the preliminary p0 Feynman-x and transverse momentum spectra, which affect the development of the electromagnetic component of an air-shower, are shown.

Scopus

Search for proton decay via p -> e(+)pi(0) and p -> mu(+)pi(0) with an enlarged fiducial volume in Super-Kamiokande I-IV Reviewed International coauthorship International journal

Takenaka A., Abe K., Bronner C., Hayato Y., Ikeda M., Imaizumi S., Ito H., Kameda J., Kataoka Y., Kato Y., Kishimoto Y., Marti Ll, Miura M., Moriyama S., Mochizuki T., Nagao Y., Nakahata M., Nakajima Y., Nakayama S., Okada T., Okamoto K., Orii A., Pronost G., Sekiya H., Shiozawa M., Sonoda Y., Suzuki Y., Takeda A., Takemoto Y., Tanaka H., Yano T., Akutsu R., Han S., Kajita T., Okumura K., Tashiro T., Wang R., Xia J., Bravo-Berguno D., Labarga L., Fernandez P., Zaldivar B., Blaszczyk F. D. M., Kearns E., Raaf J. L., Stone J. L., Wan L., Wester T., Pointon B. W., Bian J., Griskevich N. J., Kropp W. R., Locke S., Mine S., Smy M. B., Sobel H. W., Takhistov V, Weatherly P., Ganezer K. S., Hill J., Kim J. Y., Lim I. T., Park R. G., Bodur B., Scholberg K., Walter C. W., Coffani A., Drapier O., El Hedri S., Giampaolo A., Gonin M., Mueller Th A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Learned J. G., Matsuno S., Anthony L. H. V, Litchfield R. P., Sztuc A. A., Uchida Y., Berardi V, Catanesi M. G., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Ospina N., Ludovici L., Nishimura Y., Cao S., Friend M., Hasegawa T., Ishida T., Jakkapu M., Kobayashi T., Matsubara T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Hasegawa M., Isobe Y., Miyabe H., Nakano Y., Shiozawa T., Sugimoto T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Feng J., Hirota S., Ichikawa A. K., Jiang M., Kikawa T., Mori M., Nakamura K. E., Nakaya T., Wendell R. A., Yasutome K., McCauley N., Mehta P., Pritchard A., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Niwa T., Sato K., Taani M., Tsukada M., Mijakowski P., Frankiewicz K., Jung C. K., Santucci G., Vilela C., Wilking M. J., Yanagisawa C., Fukuda D., Harada M., Hagiwara K., Horai T., Ishino H., Ito S., Koshio Y., Ma K., Piplani N., Sakai S., Sakuda M., Takahira Y., Xu C., Kuno Y., Barr G., Barrow D., Cook L., Simpson C., Wark D., Nova F., Boschi T., Di Lodovico F., Segwick S. Molina, Zsoldos S., Yang J. Y., Jenkins S. J., McElwee J. M., Thiesse M. D., Thompson L. F., Okazawa H., Choi Y., Kim S. B., Yu I, Nishijima K., Koshiba M., Iwamoto K., Ogawa N., Yokoyama M., Goldsack A., Martens K., Vagins M. R., Kuze M., Tanaka M., Yoshida T., Inomoto M., Ishitsuka M., Matsumoto R., Ohta K., Shinoki M., Martin J. F., Nantais C. M., Tanaka H. A., Towstego T., Hartz M., Konaka A., de Perio P., Prouse N. W., Chen S., Xu B. D., Posiadala-Zezula M., Richards B., Jamieson B., Walker J., Minamino A., Okamoto K., Pintaudi G., Sasaki R.

PHYSICAL REVIEW D Vol. 102 ( 11 ) 2020.12

Indirect search for dark matter from the Galactic Center and halo with the Super-Kamiokande detector Reviewed International coauthorship International journal

Abe K., Bronner C., Haga Y., Hayato Y., Ikeda M., Imaizumi S., Ito H., Iyogi K., Kameda J., Kataoka Y., Kato Y., Kishimoto Y., Marti Ll, Miura M., Moriyama S., Mochizuki T., Nagao Y., Nakahata M., Nakajima Y., Nakajima T., Nakayama S., Okada T., Okamoto K., Orii A., Pronost G., Sekiya H., Shiozawa M., Sonoda Y., Takeda A., Takenaka A., Tanaka H., Tasaka S., Tomura T., Ueno K., Yano T., Yokozawa T., Akutsu R., Han S., Irvine T., Kajita T., Kametani I, Lee K. P., McLachlan T., Okumura K., Richard E., Tashiro T., Wang R., Xia J., Bravo-Berguno D., Labarga L., Fernandez P., Blaszczyk F. D. M., Gustafson J., Kachulis C., Kearns E., Raaf J. L., Stone J. L., Sulak L. R., Sussman S., Wan L., Wester T., Berkman S., Tobayama S., Bian J., Carminati G., Elnimr M., Griskevich N. J., Kropp W. R., Locke S., Mine S., Renshaw A., Smy M. B., Sobel H. W., Takhistov V, Weatherly P., Hartfiel B. L., Hill J., Keig W. E., Hong N., Kim J. Y., Lim I. T., Park R. G., Akiri T., Bodur B., Himmel A., Li Z., O'Sullivan E., Scholberg K., Walter C. W., Wongjirad T., Coffani A., Drapier O., El Hedri S., Giampaolo A., Gonin M., Imber J., Mueller Th A., Paganini P., Quilain B., Ishizuka T., Nakamura T., Jang J. S., Choi K., Learned J. G., Matsuno S., Smith S. N., Amey J., Anthony L. H. V, Litchfield R. P., Sztuc A. A., Uchida Y., Wascko M. O., Berardi V, Catanesi M. G., Intonti R. A., Radicioni E., Calabria N. F., Machado L. N., De Rosa G., Collazuol G., Iacob F., Lamoureux M., Ospina N., Ludovici L., Boschi T., Di Lodovico F., Sedgwick S. Molina, Zsoldos S., Nishimura Y., Cao S., Friend M., Hasegawa T., Ishida T., Ishii T., Kobayashi T., Nakadaira T., Nakamura K., Oyama Y., Sakashita K., Sekiguchi T., Tsukamoto T., Abe Ke, Hasegawa M., Isobe Y., Miyabe H., Nakano Y., Shiozawa T., Sugimoto T., Suzuki A. T., Takeuchi Y., Yamamoto S., Ali A., Ashida Y., Hayashino T., Hiraki T., Hirota S., Huang K., Ieki K., Jiang M., Kikawa T., Mori M., Murakami A., Nakamura K. E., Nakaya T., Patel N. D., Suzuki K., Takahashi S., Tateishi K., Wendell R. A., McCauley N., Mehta P., Pritchard A., Tsui K. M., Fukuda Y., Itow Y., Menjo H., Mitsuka G., Murase M., Muto F., Niwa T., Sato K., Suzuki T., Taani M., Tsukada M., Mijakowski P., Frankiewicz K., Hignight J., Jung C. K., Li X., Palomino J. L., Santucci G., Vilela C., Wilking M. J., Yanagisawa C., Fukuda D., Hagiwara K., Harada M., Horai T., Ishino H., Ito S., Kayano T., Kibayashi A., Koshio Y., Ma W., Mori T., Nagata H., Piplani N., Sakuda M., Seiya S., Takahira Y., Xu C., Yamaguchi R., Kuno Y., Barr G., Barrow D., Cook L., Simpson C., Wark D., Nova F., Tacik R., Yang J. Y., Cole A., Jenkins S. J., McElwee J., Thiesse M., Thompson L., Okazawa H., Kim S. B., Choi Y., Ito K., Nishijima K., Iwamoto K., Koshiba M., Suda Y., Yokoyama M., Calland R. G., Goldsack A., Martens K., Murdoch M., Suzuki Y., Vagins M. R., Hamabe D., Kuze M., Okajima Y., Tanaka M., Yoshida T., Inomoto M., Ishitsuka M., Matsumoto R., Ohta K., Shinoki M., Martin J. F., Nantais C. M., Tanaka H. A., Towstego T., Hartz M., Konaka A., de Perio P., Prouse N. W., Chen S., Xu B. D., Zhang Y., Richards B., Connolly K., Wilkes R. J., Jamieson B., Walker J., Giorgio P., Minamino A., Pintaudi G.

PHYSICAL REVIEW D Vol. 102 ( 7 ) 2020.10

Update of the atmospheric neutrino flux simulation ATMNC for next-generation neutrino experiment International coauthorship International journal

Sato K., Itow Y., Menjo H., Honda M.

16TH INTERNATIONAL CONFERENCE ON TOPICS IN ASTROPARTICLE AND UNDERGROUND PHYSICS (TAUP 2019) Vol. 1468 2020

LHCf program for run III International coauthorship International journal

Tiberio A., Adriani O., Berti E., Bonechi L., Bongi M., D’Alessandro R., Detti S., Haguenauer M., Itow Y., Kasahara K., Menjo H., Muraki Y., Ohashi K., Papini P., Ricciarini S., Sako T., Sakurai N., Sato K., Tamura T., Torii S., Tricomi A., Turner W.C., Ueno M.

Proceedings of Science Vol. 382 2020

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

The LHC-forward (LHCf) experiment has measured the very forward neutral particle production cross section in proton-proton and proton-lead collisions at the LHC up to √s = 13 TeV and √sN N = 8.16 TeV, respectively. The experiment employs two independent detectors placed on opposite sides along the beam line approximately 140 meters away from the interaction point of the ATLAS experiment (IP1). The detectors are able to measure neutral particles with pseudorapidity greater than 8.4, up to zero-degree. These measurements are extremely useful for the calibration of the hadronic interaction models used to simulate the atmospheric showers of secondary particles induced from an high energy cosmic ray. Decreasing the uncertainty between different models it is possible to improve the precision of the high energy cosmic rays measurements. In this contribution the LHCf physics motivation for the Run III of LHC are discussed. The beam parameters and the expected operation time needed for our minimum physics program are described for both p-p run at 14 TeV and p-O run at 9.9 TeV. Finally, a brief summary of the ongoing upgrade on the Arm2 detector is given.

Scopus

Recent results from the LHCf and RHICf experiments Reviewed International coauthorship International journal

Itow Y., Masuda K., Menjo H., Muraki Y., Ohashi K., Sato K., Ueno M., Zhou Q. D., Sako T., Kasahara K., Suzuki T., Torii S., Tamura T., Sakurai N., Haguenauer M., Turner W. C., Adriani O., Berti E., Bonechi L., Bongi M., D'Alessandro R., Papini P., Ricciarini S., Tiberio A., Tricomi A., Goto Y., Nakagawa I, Seidl R., Park J. S., Kim M. H., Tanida K., Hong B.

XX INTERNATIONAL SYMPOSIUM ON VERY HIGH ENERGY COSMIC RAY INTERACTIONS (ISVHECRI 2018) Vol. 208 2019

Transverse single spin asymmetry for very forward pi(0) production in polarized proton-proton collisions at root s=510 GeV Reviewed International coauthorship International journal

Kim M. H., Hong B., Goto Y., Nakagawa I, Seidl R., Park J. S., Tanida K., Itow Y., Menjo H., Sato K., Ueno M., Zhou Q. D., Sako T., Kasahara K., Suzuki T., Torii S., Sakurai N., Adriani O., Bonechi L., Berti E., D'Alessandro R., Tricomi A.

XX INTERNATIONAL SYMPOSIUM ON VERY HIGH ENERGY COSMIC RAY INTERACTIONS (ISVHECRI 2018) Vol. 208 2019

Latest results of the LHCf experiment International coauthorship International journal

Berti E., Adriani O., Bonechi L., Bongi M., D'Alessandro R., Castellini G., Haguenauer M., Itow Y., Kasahara K., Matsubara Y., Menjo H., Muraki Y., Ohashi K., Papini P., Ricciarini S., Sako T., Sakurai N., Sato K., Shimizu Y., Silveri L., Tamura T., Tiberio A., Torii S., Tricomi A., Turner W.C., Ueno M., Yoshida K.

Proceedings of Science Vol. 364 2019

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

The LHCf experiment is designed to provide precise measurements of the production spectra relative to neutral particles produced in the very forward region by high energy proton-proton and proton-ion collisions. This information is necessary in order to test and tune hadronic interaction models used by ground-based cosmic rays experiments. In order to reach this goal, LHCf makes use of two small sampling calorimeters installed in the LHC tunnel at ±140 m from IP1, both able to detect neutral particles having pseudo-rapidity η > 8.4. In LHC Run II, LHCf acquired data relative to p-p collisions at √s = 13 TeV and p-Pb collisions at √sNN = 8.1 TeV. In this paper, we discuss the results obtained from p-p collisions at √s = 13 TeV, focusing in particular on photon and neutron production, the two analyses already published by the collaboration.

Scopus

The LHCf experiment: Recent physics results International coauthorship International journal

Berti E., Adriani O., Bonechi L., Bongi M., D'Alessandro R., Haguenauer M., Itow Y., Kasahara K., Makino Y., Masuda K., Menjo H., Muraki Y., Ohashi K., Papini P., Ricciarini S., Sako T., Sakurai N., Sato K., Shinoda M., Suzuki T., Tamura T., Tiberio A., Torii S., Tricomi A., Turner W.C., Ueno M., Zhou Q.D.

Proceedings of Science Vol. 340 2019

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

The main aim of the LHCf experiment is to provide precise measurements of the production spectra relative to neutral particles produced in the very forward region by high energy protonproton and proton-ion collisions. This information is necessary in order to test and tune hadronic interaction models used by ground-based cosmic rays experiments. In order to reach this goal, LHCf makes use of two small sampling calorimeters installed in the LHC tunnel at ±140 m from IP1, able to detect neutral particles having pseudo-rapidity η > 8:4. After the operations relative to p-p collisions at √s = 13 TeV, the collaboration focused the activity on the study of forward photons and neutrons production at this energy. In this paper, we discuss the recent results relative to the photons analysis, regarding, in particular, the inclusive production cross section, the role of diffractive and non-diffractive processes in forward photons production (investigated thanks to the LHCf-ATLAS joint analysis) and the forward differential energy flow.

Scopus

The energy spectrum of forward photons measured by the RHICf experiment in vs = 510 GeV proton-proton collisions International coauthorship International journal

Proceedings of Science Vol. 358 2019

Language：English Publishing type：Research paper (international conference proceedings) Publisher：Proceedings of Science

The Relativistic Heavy Ion Collider forward (RHICf) experiment aims at understanding the high-energy hadronic interaction by measuring the cross sections of very forward neutral particles in proton-proton collisions at vs = 510 GeV. For the analysis of the photon measurement, the trigger efficiency and the particle identification performance are studied by using the Monte Carlo simulation data and the experimental data. In the RHICf operation, two kinds of trigger modes (Shower, HighEM) were implemented. The trigger efficiency of the Shower trigger is 100% for photons with the energies more than 20 GeV. The HighEM trigger is designed to detect high energy photons effectively, and the trigger efficiency of the HighEM trigger is 90% for photons with the energies more than 130 GeV. The correction factor for the photon identification is calculated by using the efficiency and purity. It is found that this correction does not make a sizeable effect on the shape of the energy spectrum because the energy dependency of the factor is small.

Scopus

Measurement of inclusive forward neutron production cross section in proton-proton collisions at root s=13 TeV with the LHCf Arm2 detector Reviewed

Adriani O., Berti E., Bonechi L., Bongi M., D'Alessandro R., Detti S., Haguenauer M., Itow Y., Kasahara K., Makino Y., Masuda K., Menjo H., Muraki Y., Ohashi K., Papini P., Ricciarini S., Sako T., Sakurai N., Sato K., Shinoda M., Suzuki T., Tamura T., Tiberio A., Torii S., Tricomi A., Turner W. C., Ueno M., Zhou Q. D.

JOURNAL OF HIGH ENERGY PHYSICS ( 11 ) 2018.11

Measurement of forward photon production cross-section in proton-proton collisions at root s=13 TeV with the LHCf detector Reviewed

Adriani O., Berti E., Bonechi L., Bongi M., D'Alessandro R., Haguenauer M., Itow Y., Iwata T., Kasahara K., Makino Y., Masuda K., Matsubayashi E., Menjo H., Muraki Y., Papini R., Ricciarini S., Sako T., Sakurai N., Shinoda M., Suzuki T., Tamura T., Tiberio A., Torii S., Tricomi A., Turner W. C., Ueno M., Zhou Q. D.

PHYSICS LETTERS B Vol. 780 page： 233-239 2018.5

RHIC forward experiment to study √ s dependence of forward particle production International coauthorship International journal

Sako T., Adriani O., Bonechi L., D'Alessandro R., Goto Y., Itow Y., Kasahara K., Kim M., Makino Y., Matsubayashi E., Menjo H., Nakagawa I., Park J., Sakurai N., Sato K., Seidl R., Shinoda M., Suzuki T., Tanida K., Torii S., Tricomi A., Ueno M., Zhou Q.D.

EPJ Web of Conferences Vol. 145 2017.6

Language：English Publishing type：Research paper (international conference proceedings) Publisher：EPJ Web of Conferences

The Relativistic Heavy Ion Collider forward experiment is ready to take data in the RHIC Run2017 √ s = 510 GeV p-p collisions using the LHCf Arm1 detector. New accelerator data are valuable to verify the Feynman scaling of FX1 production and to study the evolution of the break of scaling in neutron production. Using the transversely polarized proton beam, asymmetric production of forward neutrons is precisely measured. That is useful to understand the fundamental meson exchange in the proton-proton collisions.

DOI： 10.1051/epjconf/201614510005

Scopus

Monte Carlo study of particle production in diffractive proton-proton collisions at √s = 13 TeV with the very forward detector combined with central information Reviewed

Z. Qidong, Y. Itow, H. Menjo and T. Sako

The European Physical Journal C Vol. 77 ( 4 ) page： 212 2017.4

Language：English Publishing type：Research paper (scientific journal)

高エネルギーハドロン衝突における最前方粒子生成のプロセスの1つである回折事象を中心領域検出器と最前方粒子検出器を組み合わせて測定することができることをモンテカルロシミュレーションで示した。

DOI： 10.1140/epjc/s10052-017-4788-7

arXiv

Performance study for the photon measurements of the upgraded LHCf calorimeters with Gd2SiO5 (GSO) scintillators Reviewed

Makino Y., Tiberio A., Adriani O., Berti E., Bonechi L., Bongi M., Caccia Z., D'Alessandro R., Del Prete M., Detti S., Haguenauer M., Itow Y., Iwata T., Kasahara K., Masuda K., Matsubayashi E., Menjo H., Mitsuka G., Muraki Y., Papini P., Ricciarini S., Sako T., Sakurai N., Suzuki T., Tamura T., Torii S., Tricomi A., Turner W. C., Ueno M., Zhou Q. D.

JOURNAL OF INSTRUMENTATION Vol. 12 2017.3

The performance for the TeV photon measurement of the LHCf upgraded detector using Gd2SiO5 (GSO) scintillators

Makino Y., Adriani O., Berti E., Bonechi L., Bongi M., Castellini G., D'Alessandro R., Haguenauer M., Itow Y., Iwata T., Kasahara K., Masuda K., Matsubayashi E., Menjo H., Muraki Y., Papini P., Ricciarini S., Sako T., Suzuki T., Tamura T., Tiberio A., Torii S., Tricomi A., Turner W. C., Ueno M., Zhou Q. D.

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT Vol. 845 page： 490-493 2017.2

The LHCf experiment: Forward particles production spectra at LHC

Berti E., Adriani O., Bonechi L., Bongi M., Castellini G., D'Alessandro R., Haguenauer M., Itow Y., Iwata Y., Kasahara K., Makino Y., Masuda K., Matsubayashi E., Menjo H., Muraki Y., Papini P., Ricciarini S., Sako T., Suzuki T., Tamura T., Tiberio A., Torii S., Tricomi A., Turner W. C., Ueno M., Zhou Q. D.

NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS Vol. 40 ( 1 ) 2017

Results of the LHCf experiment and the forward measurements at the LHC Reviewed International coauthorship International journal

Sako T., Adriani O., Berti E., Bonechi L., Bongi M., Castellini G., D'Alessandro R., Haguenauer M., Itow Y., Iwata T., Kasahara K., Masuda K., Matsubayashi E., Menjo H., Muraki Y., Papini P., Ricciarini S., Sakurai N., Sato K., Shinoda M., Suzuki T., Tamura T., Tiberio A., Torii T., Tricomi A., Turner W. C., Ueno M., Zhou Q. D.

ISVHECRI 2016 - XIX INTERNATIONAL SYMPOSIUM ON VERY HIGH ENERGY COSMIC RAY INTERACTIONS Vol. 145 2017

RHIC forward experiment to study root s dependence of forward particle production Reviewed International coauthorship International journal

Sako T., Adriani O., Bonechi L., D'Alessandro R., Goto Y., Itow Y., Kasahara K., Kim M., Makino Y., Matsubayashi E., Menjo H., Nakagawa I, Park J., Sakurai N., Sato K., Seidl R., Shinoda M., Suzuki T., Tanida K., Torii S., Tricomi A., Ueno M., Zhou Q. D.

ISVHECRI 2016 - XIX INTERNATIONAL SYMPOSIUM ON VERY HIGH ENERGY COSMIC RAY INTERACTIONS Vol. 145 2017

LHCf Detector performance during the 2009-2010 LHC run Reviewed

O. Adriani, et al.

International Journal of Modern Physics A Vol. 28 ( 25 ) page： 1330036 2013.10

フィレンツェ，ポスドク体験記

毛受弘彰

日本物理学会誌 Vol. 68 ( 9 ) page： 628 2013.9

Measurement of forward neutral pion transverse momentum spectra for √s = 7TeV proton-proton collisions at LHC Reviewed

O. Adriani. et al.

Physical Review D Vol. 86 ( 9 ) page： 092001 2012.11

LHCf実験の最新成果 Reviewed

﨏隆志, 毛受弘彰

高エネルギーニュース Vol. 31 ( 2 ) page： 99-106 2012.7

Monte Carlo study of forward π¹⁷ production spectra to be measured by the LHCf experiment for the purpose of benchmarking hadron interaction models at 10¹⁷ eV Reviewed

H. Menjo, et al.

Astroparticle Physics Vol. 612 ( 3 ) page： 513-520 2011.2

Measurement of zero degree single photon energy spectra for √s = 7 TeV proton-proton collisions at LHC Reviewed

O. Adriani, et al.

Physics Letters B Vol. 703 page： 128-134 2011

The LHCf detector at the CERN Large Hadron Collider Reviewed

O. Adriani, et al.

Journal of Instrumentation Vol. 08 ( 08 ) page： S08006 2008

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<MENJO Hiroaki>

Papers - MENJO Hiroaki