研究者詳細 - 清水　裕彦

Pendellösung interferometry by using pulsed neutrons 査読有り Open Access

Itoh S., Nakaji M., Uchida Y., Kitaguchi M., Shimizu H.M.

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 908 巻頁： 78 - 81 2018年11月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Pendellösung interferometry is one of the technique for accurate determination of the structure factors of crystals. Observation method of Pendellösung fringes by using pulsed cold neutrons and the time-of-flight analysis were established. We measured the nuclear scattering length of silicon by the Pendellösung fringes with pulsed neutrons as (4.125±0.003(stat.)±0.028(syst.)). This indicates the applicability of Pendellösung interferometry at high-intensity pulsed neutron facilities for various precision measurements.

DOI： 10.1016/j.nima.2018.08.043

The general relativistic effects on the magnetic moment in Earth's gravity (vol 2018, 063B07, 2018) 査読有り Open Access

Morishima, T; Futamase, T; Shimizu, HM

PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS 2018 巻 ( 8 ) 2018年8月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Progress of Theoretical and Experimental Physics

The authors originally denoted the muon g-factor as gμ, whichwas mistyped as "gμ" in the published manuscript during the editing process. Equation (59) should be corrected as (Formula Presented).. The publisher apologises for any inconvenience caused.

DOI： 10.1093/ptep/pty085

中小型加速器中性子源の構築のための日本加速器学会と日本中性子科学会の連携に関して

広田克也, 清水裕彦, 岩下芳久, 内藤富士雄

加速器 15 巻 ( 2 ) 頁： 69 - 72 2018年7月

Nuclear spin dependence of time reversal invariance violating effects in neutron scattering 査読有り Open Access

Gudkov, V; Shimizu, HM

PHYSICAL REVIEW C 97 巻 ( 6 ) 2018年6月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Physical Review C

The spin structure of parity violating and time reversal invariance violating effects in neutron scattering is discussed. The explicit relations between these effects are presented in terms of functions nuclear spins and neutron partial widths of p-wave resonances.

DOI： 10.1103/PhysRevC.97.065502

Search for deviations from the inverse square law of gravity at nm range using a pulsed neutron beam 査読有り Open Access

Haddock, CC; Oi, N; Hirota, K; Ino, T; Kitaguchi, M; Matsumoto, S; Mishima, K; Shima, T; Shimizu, HM; Snow, WM; Yoshioka, T

PHYSICAL REVIEW D 97 巻 ( 6 ) 2018年3月

記述言語：日本語掲載種別：研究論文（学術雑誌）出版者・発行元：Physical Review D

We describe an experimental search for deviations from the inverse-square law of gravity at the nanometer length scale using neutron scattering from noble gases on a pulsed slow neutron beam line. By measuring the neutron momentum transfer (q) dependence of the differential cross section for xenon and helium and comparing to their well-known analytical forms, we place an upper bound on the strength of a new interaction as a function of interaction length λ which improves upon previous results in the region λ<0.1 nm, and remains competitive in the larger-λ region. A pseudoexperimental simulation is developed for this experiment and its role in the data analysis is described. We conclude with plans for improving sensitivity in the larger-λ region.

DOI： 10.1103/PhysRevD.97.062002