Performance check of the CsI(Tl) calorimeter for the J-PARC E36 experiment by observing e+ from muon decay
Performance check of the CsI(Tl) calorimeter for the J-PARC E36 experiment by observing e+ from muon decay
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通过观察 μ 子衰变中的 e 来检查 J-PARC E36 实验中 CsI(Tl) 量热仪的性能
DOI:
10.1016/j.nima.2018.05.065
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Imazato, J.
中科院分区:
文献类型:
--
作者:
Ito, H.;Horie, K.;Shimizu, S.;Bianchin, S.;Djalali, C.;Dongwi, B.;Gill, D.;Hasinoff, M.D.;Igarashi, Y.;Imazato, J.
Abstract The J-PARC E36 experiment is searching for lepton universality violation with a stopped kaon beam by measuring the ratio of the K+ decay widths Γ (K e 2)∕ Γ (K μ 2)= Γ (K+→ e+ ν e)∕ Γ (K+→ μ+ ν μ). Since the radiative K+→ e+ ν e γ decays are backgrounds to be removed in this measurement, the radiated γ rays were detected in a CsI (Tl) calorimeter. The energy calibration for the 768 CsI (Tl) modules was performed using mono-chromatic μ+ s from the K μ 2 decays. The delayed e+ signals from the muon decays were required in order to improve the S/N ratio of the K μ 2 peak by suppressing background events. In addition, a new energy calibration method of the CsI (Tl) calorimeter using stopped cosmic muons has been established.
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DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
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通讯作者:
T. Collaboration
影响因子:
4.4
作者:
Haino, S;Sanuki, T;Yoshimura, K
通讯作者:
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DOI:
10.1140/epjc/s10052-010-1284-8
发表时间:
2010
期刊:
The European Physical Journal C
影响因子:
--
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通讯作者:
R. Zimmermann
影响因子:
4.4
作者:
Lazzeroni C
通讯作者:
Lazzeroni C
DOI:
--
发表时间:
2003
期刊:
Nuclear Instruments and Methods in Physics Research A 506
影响因子:
--
作者:
鳥居隆;水野俊太郎A;前田恵一;J.Macdonald et al.
通讯作者:
J.Macdonald et al.