التفاصيل البيبلوغرافية
| العنوان: |
Neutron lifetime measurement with pulsed cold neutrons. |
| المؤلفون: |
Hirota, K, Ichikawa, G, Ieki, S, Ino, T, Iwashita, Y, Kitaguchi, M, Kitahara, R, Koga, J, Mishima, K, Mogi, T, Morikawa, K, Morishita, A, Nagakura, N, Oide, H, Okabe, H, Otono, H, Seki, Y, Sekiba, D, Shima, T, Shimizu, H M |
| المصدر: |
Progress of Theoretical & Experimental Physics: PTEP; Dec2020, Vol. 2020 Issue 12, p1-27, 27p |
| مصطلحات موضوعية: |
COLD neutrons, NEUTRON beams, NEUTRON capture, TIME projection chambers (Nuclear physics), MONTE Carlo method |
| مستخلص: |
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. [ABSTRACT FROM AUTHOR] |
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