Neutron lifetime measurement with pulsed cold neutrons-Reference-Cited by-同舟云学术

Neutron lifetime measurement with pulsed cold neutrons

Published:2020-12 Issue:12 Volume:2020 Page:
ISSN:2050-3911
Container-title:Progress of Theoretical and Experimental Physics
language:en
Short-container-title:

Author:

Hirota K¹,Ichikawa G²³,Ieki S⁴,Ino T²³,Iwashita Y⁵,Kitaguchi M¹⁶,Kitahara R⁷,Koga J⁸,Mishima K²³,Mogi T⁴,Morikawa K¹,Morishita A⁸,Nagakura N⁴,Oide H⁴,Okabe H¹,Otono H⁹,Seki Y¹⁰,Sekiba D¹¹,Shima T¹²,Shimizu H M¹,Sumi N²³⁸,Sumino H¹³,Tomita T⁸,Uehara H⁸,Yamada T⁴,Yamashita S¹⁴,Yano K⁸,Yokohashi M¹,Yoshioka T⁹

Affiliation:

1. Department of Physics, Nagoya University, Nagoya, 464-8602, Japan

2. High Energy Accelerator Research Organization (KEK), Tsukuba, 305-0802, Japan

3. J-PARC Center, Tokai, 319-1195, Japan

4. Department of Physics, The University of Tokyo, Tokyo 113-0033, Japan

5. Institute of Chemical Research, Kyoto University, Uji, 611-0011, Japan

6. Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University, Nagoya, 464-8602, Japan

7. Department of Physics, Kyoto University, Kyoto, 606-8502, Japan

8. Department of Physics, Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan

9. Research Center for Advanced Particle Physics (RCAPP), Kyushu University, Fukuoka, 819-0395, Japan

10. Center for Physics and Mathematics, Osaka Electro-Communication University, Neyagawa, 572-8530, Japan

11. Institute of Applied Physics, University of Tsukuba, Tsukuba, 305-8573, Japan

12. Research Center for Nuclear Physics (RCNP), Osaka University, Ibaraki, 567-0047, Japan

13. Department of General Systems Studies, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo, 153-8902, Japan

14. International Center for the Elementary Particle Physics (ICEPP), The University of Tokyo, Tokyo, 113-0033, Japan

Abstract

Abstract The neutron lifetime has been measured by comparing the decay rate with the reaction rate of $^3$He nuclei of a pulsed neutron beam from the spallation neutron source at the Japan Proton Accelerator Research Complex (J-PARC). The decay rate and the reaction rate were determined by simultaneously detecting electrons from the neutron decay and protons from the $^3$He(n,p)$^3$H reaction using a gas chamber, the working gas of which contains diluted $^3$He. The measured neutron lifetime was $898\,\pm\,10\,_{\rm stat}\,^{+15}_{-18}\,_{\rm sys}\,$s.

Funder

SCOAP

Publisher

Oxford University Press (OUP)

Subject

General Physics and Astronomy

Link

http://academic.oup.com/ptep/advance-article-pdf/doi/10.1093/ptep/ptaa169/34696253/ptaa169.pdf

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