Commissioning of liquid xenon gamma-ray detector for MEG II experiment

被引：0

作者：

Matsushita, Ayaka ^{[1
]}

Ban, Sei ^{[1
]}

Benmansour, Hicham ^{[2
,3
,4
]}

Maso, Giovanni Dal ^{[4
,6
]}

Francesconi, Marco ^{[2
,3
]}

Galli, Luca ^{[2
]}

Ikeda, Fumihito ^{[1
]}

Iwamoto, Toshiyuki ^{[1
]}

Kobayashi, Satoru ^{[1
]}

Mori, Toshinori ^{[1
]}

Nicolo, Donato ^{[2
]}

Onda, Rina ^{[1
]}

Ootani, Wataru ^{[1
]}

Oya, Atsushi ^{[1
]}

Ogawa, Shinji ^{[1
,7
]}

Papa, Angela ^{[2
,3
,4
]}

Schwendimann, Patrick ^{[4
,6
,8
]}

Uchiyama, Yusuke ^{[1
]}

Vitali, Bastiano ^{[2
,5
]}

Yamamoto, Kensuke ^{[1
]}

Yonemoto, Taku ^{[1
]}

Yoshida, Keisuke ^{[1
]}

机构：

[1] Univ Tokyo, 7-3-1 Hongo, Bunkyo Ku, Tokyo 1130033, Japan

[2] Ist Nazl Fis Nucl, Sez Pisa, Polo Fibonacci Largo B Pontecorvo 3, I-56127 Pisa, Italy

[3] Univ Pisa, Dipartimento Fis, Polo Fibonacci Largo B Pontecorvo 3, I-56127 Pisa, Italy

[4] Paul Scherrer Inst, Forschungsstr 111, CH-5232 Villigen, Switzerland

[5] Univ Roma La Sapienza, Piazzale Aldo Moro, Piazzale Aldo Moro 5, I-00185 Rome, Italy

[6] Swiss Fed Inst Technol, Inst Particle Phys & Astrophys, Otto-Stern-Weg 5, CH-8093 Zurich, Switzerland

[7] Kyushu Univ, 744 Motooka, Nish Ku, Fukuoka, Fukuoka 8190395, Japan

[8] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2023年 / 1047卷

关键词：

Calorimetry; SiPM; Liquid xenon;

D O I：

10.1016/j.nima.2022.167877

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The liquid xenon (LXe) gamma-ray detector in the MEG II experiment measures the energy, position and timing of the gamma-ray from ic+-+ e+y, and it is the key to the unprecedented sensitivity of the experiment. All the photo sensors of 4092 VUV MPPCs and 668 PMTs were read out for the first time and a physics data collection started in 2021. The detector response was monitored all through the beam time, and the LXe detector operated stably. The timing and energy resolution were measured using the gamma-rays from the pi 0 decays after charge exchange reaction of charged pions in a liquid hydrogen target. The detector has been successfully commissioned and is ready for the long physics run.

引用

页数：2

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