Faculty Profiles - SHIMIZU Hirohiko

Papers - SHIMIZU Hirohiko

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Neutron lifetime measurement at J-PARC/BL05: SFC upgrade

Okabe Hiroki, Hino Masahiro, Hirota Katsuya, Ieki Sei, Ino Takashi, Iwashita Yoshihisa, Kitaguchi Masaaki, Kitahara Ryunosuke, Koga Jun, Mishima Kenji, Morishita Aya, Nakano Yusuke, Nagakura Naoki, Oda Tatsuro, Oide Hideyuki, Otono Hidetoshi, Seki Yoshichika, Sekiba Daiichiro, Shima Tatsushi, Shimizu Hirohiko M., Sumi Naoyuki, Sumino Hirochika, Taketani Kaoru, Tomita Tatsuhiko, Uehara Hideaki, Yamada Takahito, Yamashita Satoru, Yokohashi Mami, Yoshioka Tamaki

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 72 - 72 2020

Performance of a detector for new intermediate range interaction by means of neutron coherent scattering

Nakabe Rintaro, Shimizu Hirohiko, Hirota Katsuya, Kitaguchi Masaaki, Kondo Ryota, Shima Tatsushi, Hara Shuhei, Hiromoto Masayuki, Haddock Christopher C., Ino Takashi, Mishima Kenji, Snow W. Michael, Yoshioka Tamaki

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 317 - 317 2020

Test of nanoparticle target for study of new intermediate range interaction by means of neutron coherent scattering

Hiromoto Masayuki, Haddock Christopher C., Nakabe Rintaro, Kondo Ryota, Hirota Katsuya, Ino Takashi, Kitaguchi Masaaki, Mishima Kenji, Shima Tatsushi, Shimizu Hirohiko M., Snow W. Michael, Yoshioka Tamaki, Hara Shuhei

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 316 - 316 2020

Unknown Interaction Search with Neutron Diffraction

Fujiie T., Shimizu H. M., Kitaguchi M., Yamagata Y., Hosobata T., Takeda M., Young Albert, Valdillez Robert, Heacock Benjamin, Huber Michael

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 74 - 74 2020

Measurement of spin rotation by the inner electric field of a crystal for nEDM search experiment

Itoh Shigeyasu, Fukumura Seiso, Hishida Mayu, Kitaguchi Masaaki, Shimizu Hirohiko M.

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 275 - 275 2020

Development of Pulsed Neutron Interferometer

Yamamoto Nana, Kitaguchi Masaaki, Shimizu Hirohiko, Seki Yoshichika, Mishima Kenji

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 318 - 318 2020

The progress of polarized target study for the search of T-violation in the neutron resonant capture in 2019

Hotta H., Ishizaki K., Ide I., Shimizu H. M., Kitaguchi M., Iinuma M., Kohri H., Yosoi M., Yoshikawa H., Ishimoto S.

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 335 - 335 2020

Development of nuclear polarized target for NOPTREX experiments --Measurement of spin-lattice relaxation in LaAlO3--

Ide I., Ishizaki K., Shimizu H. M., Kitaguchi M., Iinuma M., Kohri H., Yosoi M., Yoshikawa H., Miyachi Y., Miura D., Ishimoto S.

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 311 - 311 2020

Report of the MTV experiment 3

Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Goto F., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tanuma R., Tamura K., Totsuka Y., Nakaya Y., Baba H., Masuda H., Yamawaki Y., Yokohashi M., Yoshida T., Watanabe E., Behr J. A., Pearson M., Levy P., Murata J.

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 280 - 280 2020

Report of the MTV experiment 2

Goto F., Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tanuma R., Tamura K., Totsuka Y., Nakaya Y., Baba H., Masuda H., Murata J., Yamawaki Y., Yokohashi M., Watanabe E., Behr John A, Pearson Matthew, Levy Phil

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 279 - 279 2020

Report of the MTV experiment 1

Tamura K., Ozaki S., Kajihara T., Kawamura H., Kitaguchi M., Goto F., Sakamoto Y., Shimizu H. M., Shimizu Y., Takenaka R., Tanaka S., Tanuma R., Totsuka Y., Nakaya Y., Baba H., Masuda H., Murata J., Yamawaki Y., Yokohashi M., Watanabe E., Behr John A, Pearson Matthew, Levy Phil

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 278 - 278 2020

Neutron lifetime measurement at J-PARC/BL05: Estimation of background and systematic errors

ICHIKAWA Go, HIROTA Katsuya, IEKI Sei, INO Takashi, IWASHITA Yoshihisa, KAJIWARA Shogo, KATO Yu, KITAGUCHI Masaaki, KITAHARA Ryunosuke, KOGA Jun, MAKISE So, MISHIMA Kenji, MOGI Takanori, MORIKAWA Koki, MORISHITA Aya, NAGAKURA Naoki, NAKANO Yusuke, OIDE Hideyuki, OKABE Hiroki, OTONO Hidetoshi, SEKI Yoshichika, SEKIBA Daiichiro, SHIMA Tatsushi, SHIMIZU Hirohiko, SUGISAWA Yuki, SUMI Naoyuki, SUMINO Hirochika, TAKETANI Kaoru, TANABE Tomohiko, TOMITA Tatsuhiko, UEHARA Hideaki, YAMADA Takahito, YAMASHITA Satoru, YANO Kodai, YOKOHASHI Mami, YOSHIOKA Tamaki

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 70 - 70 2020

The progress of polarized target study for the search of T-violation in the neutron resonant capture in 2019

Ishizaki K., Iinuma M., Ikeda Y., Ikegami H., Ishiguro R., Ishimoto S., Ide I., Ino T., Iwata T., Uesaka T., Otomo T., Oku T., Kanda H., Kitaguchi M., Kohri H., Shima T., Shimizu H. M., Takahashi D., Takahashi Y., Fujita M., Hotta D., matsushita T., Miura D., Miyachi Y., Yoshikawa H., Yosoi M., Wada N., NOPTREX collaboration

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 310 - 310 2020

Measurement of the inner electric field of a crystals for neutron EDM measurement using crystal diffraction

Hishida Mayu, Itoh Shigeyasu, Fukumura Seiso, Kitaguchi Masaaki, Shimizu Hirohiko

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 276 - 276 2020

Searching for Lorentz Violation in Weak Interaction

Takenaka R., Ozaki S., Kajihara T., Kitaguchi M., Goto F., Shimizu H. M., Shimizu Y., Tamura K., Masuda H., Yamawaki Y., Watanabe E., Murata J.

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 313 - 313 2020

Development of the Model Describing Neutron Coherent Scattering by Extra-dimensional Gravity

Kondo Ryota, Hiromoto Masayuki, Hori Taichi, Haddock Christopher C., Oi Noriko, Hirota Katsuya, Ino Takashi, Kitaguchi Masaaki, Mishima Kenji, Shima Tatsushi, Shimizu Hirohiko M., Snow W. Michael, Hara Shuhei, Yoshioka Tamaki

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 315 - 315 2020

Neutron lifetime measurement at J-PARC/BL05: Estimation of content rate of 3He in TPC operating gas

MORIKAWA Koki, HIROTA Katsuya, ICHIKAWA Go, IEKI Sei, INO Takashi, IWASHITA Yoshihisa, KAJIWARA Shogo, KATO Yu, KITAGUCHI Masaaki, KITAHARA Ryunosuke, KOGA Jun, MAKISE So, MISHIMA Kenji, MOGI Takanori, MORISHITA Aya, NAGAKURA Naoki, NAKANO Yusuke, OIDE Hideyuki, OKABE Hiroki, OTONO Hidetoshi, SEKI Yoshichika, SEKIBA Daiichiro, SHIMA Tatsushi, SHIMIZU Hirohiko, SUGISAWA Yuki, SUMI Naoyuki, SUMINO Hirochika, TAKETANI Kaoru, TANABE Tomohiko, TOMITA Tatsuhiko, UEHARA Hideaki, YAMADA Takahito, YAMASHITA Satoru, YANO Kodai, YOKOHASHI Mami, YOSHIOKA Tamaki

Meeting Abstracts of the Physical Society of Japan Vol. 75.1 ( 0 ) page： 71 - 71 2020

Measurement of the total neutron-scattering cross-section ratios of noble gases of natural isotopic composition using a pulsed neutron beam Open Access

Haddock C.C., Hiromoto M., Hirota K., Ino T., Kitaguchi M., Mishima K., Oi N., Shima T., Shimizu H.M., Snow W.M., Yoshioka T.

Physical Review C Vol. 100 ( 6 ) 2019.12

Language：Japanese Publisher：Physical Review C

Precision measurements of slow neutron cross sections with atoms have several scientific applications. In particular, the n-He4 s-wave scattering length is important to know both for helping to constrain the nuclear three-body interaction and for the proper interpretation of several ongoing slow neutron experiments searching for other types of neutron-atom interactions. We present new measurements of the ratios of the neutron differential scattering cross sections of the noble gases He, Ar, Kr, and Xe to Ne. All gases used were of natural isotopic abundance. These measurements were performed using a recently developed neutron-scattering apparatus for gas samples located on a pulsed slow neutron beamline which was designed to search for possible exotic neutron-atom interactions and employs both neutron time of flight information and a position-sensitive neutron detector for scattering event reconstruction. We found agreement with the literature values of scattering cross sections inferred from Ar/Ne, Kr/Ne, and Xe/Ne differential cross-section ratios over the q range of 1-7 nm-1. However, for the case of He/Ne we find that the cross section inferred differs by 11.3% (7.6σ) from previously reported values inferred from neutron phase-shift measurements, but is in reasonable agreement with values from other measurements. The very large discrepancy in the He/Ne ratio calls for a new precision measurement of the n-He4 scattering length using neutron interferometry.

DOI： 10.1103/PhysRevC.100.064002

Web of Science

Scopus

Concentration of Neutron Velocity for High-Density Ultra-Cold Neutrons

Kitaguchi Masaaki, Shimizu Hirohiko M., Iwashita Yoshihisa

Journal of the Particle Accelerator Society of Japan Vol. 16 ( 3 ) page： 161 - 166 2019.10

Language：Japanese Publisher：Particle Accelerator Society of Japan

Accelerator technique for neutrons is discussed in this article. In the case of pulsed neutrons, the velocity is well-defined as a function of their arrival time. Electromagnetic neutron accelerator/decelerator synchronized with the neutron time-of-flight is capable of selectively changing the neutron velocity and concentrating the velocity distribution. Possible enhancement of the neutron intensity at a specific neutron velocity is calculated by using numerical simulations. This technique, for example, can be applied to efficient conversion of ultra-cold neutrons with superfluid helium.

DOI： 10.50868/pasj.16.3_161

CiNii Research

Improved accuracy in the determination of the thermal cross section of 14N(n, p) 14C for neutron lifetime measurement Open Access

Kitahara R., Hirota K., Ieki S., Ino T., Iwashita Y., Kitaguchi M., Koga J., Mishima K., Morishita A., Nagakura N., Oide H., Otono H., Seki Y., Sekiba D., Shima T., Shimizu H.M., Sumi N., Sumino H., Taketani K., Tomita T., Yamada T., Yamashita S., Yokohashi M., Yoshioka T.

Progress of Theoretical and Experimental Physics Vol. 2019 ( 9 ) 2019.9

Language：Japanese Publisher：Progress of Theoretical and Experimental Physics

In a neutron lifetime measurement at the Japan Proton Accelerator Complex, the neutron lifetime is calculated from the neutron decay rate and the incident neutron flux. The flux is obtained by counting the protons emitted from the neutron absorption reaction of 3He gas, which is diluted in a mixture of working gas in a detector. Hence, it is crucial to determine the amount of 3He in the mixture. In order to improve the accuracy of the number density of the 3He nuclei, we have suggested using the 14N(n, p)14C reaction as a reference because this reaction involves similar kinetic energy to the 3He(n,p)3 H reaction and a smaller reaction cross section to introduce reasonable large partial pressure. The uncertainty of the recommended value of the cross section, however, is not satisfied with our requirement. In this paper we report the most accurate experimental value of the cross section of the 14N(n,p)14C reaction at a neutron velocity of 2200 m s-1, measured relative to the 3He(n,p)3H reaction. The result was 1.868 \pm 0.003 (stat.) ± 0.006 (sys.) b. Additionally, the cross section of the 17O(n,α)14C reaction at the neutron velocity is also redetermined as 249 ± 6 mb.

DOI： 10.1093/ptep/ptz096

Open Access

Web of Science

Scopus

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Papers - SHIMIZU Hirohiko