Performance check of the CsI(Tl) calorimeter for the J-PARC E36 experiment by observing e+ from muon decay

被引：5

作者：

Ito, H. ^{[1
]}

Horie, K. ^{[2
]}

Shimizu, S. ^{[2
]}

Bianchin, S. ^{[3
]}

Djalali, C. ^{[4
]}

Dongwi, B. ^{[5
]}

Gill, D. ^{[3
]}

Hasinoff, M. D. ^{[6
]}

Igarashi, Y. ^{[7
]}

Imazato, J. ^{[7
]}

Kalantarians, N. ^{[8
]}

Kawai, H. ^{[9
]}

Kimur, S. ^{[9
]}

Kobayashi, A. ^{[9
]}

Kodama, S. ^{[9
]}

Kohl, M. ^{[5
]}

Lu, H. ^{[4
]}

Mineev, O. ^{[10
]}

Tabata, M. ^{[9
]}

Tanuma, R. ^{[11
]}

Yershov, N. ^{[10
]}

机构：

[1] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

[2] Osaka Univ, Dept Phys, Osaka 5600043, Japan

[3] TRIUMF, Vancouver, BC V6T 2A3, Canada

[4] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

[5] Hampton Univ, Dept Phys, Hampton, VA 23668 USA

[6] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[7] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 3050801, Japan

[8] Virginia Union Univ, Nat Sci Dept, Richmond, VA 23220 USA

[9] Chiba Univ, Dept Phys, Chiba 2638522, Japan

[10] Inst Nucl Res, Moscow 117312, Russia

[11] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1718501, Japan

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2018年 / 901卷

基金：

日本学术振兴会; 加拿大自然科学与工程研究理事会;

关键词：

Kaon decay; CsI(Tl) calorimeter; Waveform analysis; KAON DECAYS;

D O I：

10.1016/j.nima.2018.05.065

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The J-PARCE36 experiment is searching for lepton universally violation with a stopped kaon beam by measuring the ratio of the K+ decay widths Gamma(K-e(2))/Gamma (K-mu 2 ) = Gamma (K+-> e(+)v(e)) / Gamma(K+-> mu(+)v(mu) ). Since the radiative K+-> e(+)v(e)gamma decays are backgrounds to be removed in this measurement, the radiated gamma rays were detected in a CsI(Tl) calorimeter. The energy calibration for the 768 CsI(Tl) modules was performed using mono-chromatic les from the K(mu 2)decays. The delayed e(+) signals from the muon decays were required in order to improve the S/N ratio of the K-mu 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.

引用

页码：1 / 5

页数：5

共 8 条

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Toyoda, Akihisa
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NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2015, 795 : 206 - 212
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INTERNATIONAL CONFERENCE ON KAON PHYSICS, KAON 2022, 2023, 2446

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