Operation and performance of the MEG II detector

被引：6

作者：

Afanaciev, K. ^{[1
]}

Baldini, A. M. ^{[2
]}

Ban, S. ^{[4
]}

Baranov, V. ^{[1
]}

Benmansour, H. ^{[2
,3
]}

Biasotti, M. ^{[5
]}

Boca, G. ^{[7
,8
]}

Cattaneo, P. W. ^{[7
]}

Cavoto, G. ^{[9
,10
]}

Cei, F. ^{[2
,3
]}

Chiappini, M. ^{[2
,3
]}

Chiarello, G. ^{[11
,23
]}

Corvaglia, A. ^{[11
]}

Cuna, F. ^{[11
,12
,24
]}

Maso, G. Dal ^{[13
,14
]}

De Bari, A. ^{[7
]}

De Gerone, M. ^{[5
]}

Barusso, L. Ferrari ^{[5
,6
]}

Francesconi, M. ^{[15
]}

Galli, L. ^{[2
]}

Gallucci, G. ^{[5
]}

Gatti, F. ^{[5
,6
]}

Gerritzen, L. ^{[4
]}

Grancagnolo, F. ^{[11
]}

Grandoni, E. G. ^{[2
,3
]}

Grassi, M. ^{[2
]}

Grigoriev, D. N. ^{[16
,17
,18
]}

Hildebrandt, M. ^{[13
]}

Ieki, K. ^{[4
]}

Ignatov, F. ^{[19
]}

Ikeda, F. ^{[4
]}

Iwamoto, T. ^{[4
]}

Karpov, S. ^{[16
,18
]}

Kettle, P. -r. ^{[13
]}

Khomutov, N. ^{[1
]}

Kobayashi, S. ^{[4
]}

Kolesnikov, A. ^{[1
]}

Kravchuk, N. ^{[1
]}

Krylov, V. ^{[1
]}

Kuchinskiy, N. ^{[1
]}

Kyle, W. ^{[20
]}

Libeiro, T. ^{[20
]}

Malyshev, V. ^{[1
]}

Matsushita, A. ^{[4
]}

Meucci, M. ^{[9
,10
]}

Mihara, S. ^{[21
]}

Molzon, W. ^{[20
]}

Mori, Toshinori ^{[4
]}

Morsani, F. ^{[2
]}

Nakao, M. ^{[4
]}

机构：

[1] Joint Inst Nucl Res, Dubna 141980, Russia

[2] INFN, Sez Pisa, Pisa, Italy

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

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

[5] INFN, Sez Genova, Genoa, Italy

[6] Dipartimento Fis Univ, Via Dodecaneso 33, I-16146 Genoa, Italy

[7] INFN, Sez Pavia, Pavia, Italy

[8] Univ Pavia, Dipartimento Fis, Via Bassi 6, I-27100 Pavia, Italy

[9] INFN Sez Roma, Rome, Italy

[10] Univ Sapienza, Dipartimento Fis, Piazzale A Moro 2, I-00185 Rome, Italy

[11] INFN, Sez Lecce, Lecce, Italy

[12] Univ Salento, Dipartimento Matemat & Fis, Via Arnesano, I-73100 Lecce, Italy

[13] Paul Scherrer Inst PSI, CH-5232 Villigen, Switzerland

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

[15] INFN, Sez Napoli, Via Cintia, I-80126 Naples, Italy

[16] Russian Acad Sci, Siberian Branch, Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[17] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia

[18] Novosibirsk State Univ, Novosibirsk 630090, Russia

[19] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, England

[20] Univ Calif Irvine, Irvine, CA 92697 USA

[21] KEK High Energy Accelerator Res Org, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan

[22] Kobe Univ, 1-1 Rokkodai Cho,Nada Ku, Kobe, Hyogo 6578501, Japan

[23] Univ Palermo, Dept Engn, Viale Sci Bldg 9, I-90128 Palermo, Italy

[24] INFN, Sez Bari, Via Giovanni Amendola 173, I-70126 Bari, Italy

[25] Univ LUM Giuseppe Degennaro, Dipartimento Med & Chirurg, I-70010 Casamassima, Bari, Italy

来源：

EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 02期

基金：

瑞士国家科学基金会; 欧盟地平线“2020”;

关键词：

SENSITIVITY; E(+)GAMMA; TRACKING; MU(+);

D O I：

10.1140/epjc/s10052-024-12415-3

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The MEG II experiment, located at the Paul Scherrer Institut (PSI) in Switzerland, is the successor to the MEG experiment, which completed data taking in 2013. MEG II started fully operational data taking in 2021, with the goal of improving the sensitivity of the mu+-> e+gamma\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\upmu <^>+ \rightarrow {\textrm{e}}<^>+ \upgamma $$\end{document} decay down to similar to 6x10-14\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sim 6 \times 10<^>{-14}$$\end{document} almost an order of magnitude better than the current limit. In this paper, we describe the operation and performance of the experiment and give a new estimate of its sensitivity versus data acquisition time.

引用

页数：44

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