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액시온 및 극한상호작용 연구단
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COMET Phase-I technical design report

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Title
COMET Phase-I technical design report
Author(s)
R. Abramishvili; G. Adamov; R. R. Akhmetshin; A. Allin; J. C. Angélique; V. Anishchik; M. Aoki; D. Aznabayev; I. Bagaturia; G. Ban; Y. Ban; D. Bauer; D. Baygarashev; A. E. Bondar; C. Cârloganu; B. Carniol; T. T. Chau; J. K. Chen; S. J. Chen; Y. E. Cheung; W. da Silva; P. D. Dauncey; C. Densham; G.Devidze; P.Dornan; A.Drutskoy; V.Duginov; Y.Eguchi; L.B.Epshteyn; P. Evtoukhovitch; S. Fayer; G. V. Fedotovich; M. Finger Jr; M. Finger; Y. Fujii; Y. Fukao; J. L. Gabriel; P. Gay; E. Gillies; D. N. Grigoriev; K. Gritsay; V. H. Hai; E. Hamada; I. H. Hashim; S. Hashimoto; O. Hayashi; T. Hayashi; T. Hiasa; Z. A. Ibrahim; Y. Igarashi; F. V. Ignatov; M. Iio; K. Ishibashi; A. Issadykov; T. Itahashi; A. Jansen; X. S. Jiang; P. Jonsson; T. Kachelhoffer; V.Kalinnikov; E.Kaneva; F.Kapusta; H.Katayama; K.Kawagoe; R.Kawashima; N. Kazak; V. F. Kazanin; O. Kemularia; A. Khvedelidze; M. Koike; T. Kormoll; G. A. Kozlov; A. N. Kozyrev; M. Kravchenko; B. Krikler; G. Kumsiashvili; Y. Kuno; Y. Kuriyama; Y. Kurochkin; A. Kurup; B. Lagrange; J. Lai; Myeongjae Lee; H. B. Li; R. P. Litchfield; W. G. Li; T. Loan; D. Lomidze; I. Lomidze; P. Loveridge; G. Macharashvili; Y. Makida; Y. J. Mao; O. Markin; Y. Matsuda; A. Melkadze; A. Melnik; T. Mibe; S. Mihara; N. Miyamoto; Y. Miyazaki; F. Mohamad Idris; K. A. Mohamed Kamal Azmi; A. Moiseenko; M. Moritsu; Y. Mori; T. Motoishi; H. Nakai; Y. Nakai; T. Nakamoto; Y. Nakamura; Y. Nakatsugawa; Y. Nakazawa; J. Nash; Hiroaki Natori; V. Niess; M. Nioradze; H. Nishiguchi; K. Noguchi; T. Numao; J. O’Dell; T. Ogitsu; S. Ohta; K. Oishi; K. Okamoto; T. Okamura; K. Okinaka; C. Omori; T. Ota; J. Pasternak; A. Paulau; D. Picters; V. Ponariadov; G. Quémener; A. A. Ruban; V. Rusinov; B. Sabirov; H. Sakamoto; P. Sarin; K. Sasaki; A. Sato; J. Sato; Yannis. K. Semertzidis; N. Shigyo; Dz. Shoukavy; M. Slunecka; D. Stöckinger; M.Sugano; T.Tachimoto; T.Takayanagi; M.Tanaka; J.Tang; C.V.Tao; A.M.Teixeira; Y.Tevzadze; T.Thanh; J.Tojo; S.S.Tolmachev; M.Tomasek; M.Tomizawa; T. Toriashvili; H. Trang; I. Trekov; Z. Tsamalaidze; N. Tsverava; T. Uchida; Y. Uchida; K. Ueno; E. Velicheva; A. Volkov; V. Vrba; W. A. T. Wan Abdullah; P. Warin-Charpentier; M. L. Wong; T. S. Wong; C. Wu; T. Y. Xing; H. Yamaguchi; A. Yamamoto; M. Yamanaka; T. Yamane; Y. Yang; T. Yano; W. C.Yao; B.Yeo; H.Yoshida; M.Yoshida; T.Yoshioka; Y.Yuan; Yu.V.Yudi; M.V. Zdorovets; J. Zhang; Y. Zhang; K. Zuber
Publication Date
2020-03
Journal
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, v.2020, no.3
Publisher
OXFORD UNIV PRESS INC
Abstract
The Technical Design for the COMET Phase-I experiment is presented in this paper. COMET is an experiment at J-PARC, Japan, which will search for neutrinoless conversion of muons into electrons in the field of an aluminum nucleus (⁠μμ–ee conversion, μ−N→e−Nμ − N→e − N⁠); a lepton flavor-violating process. The experimental sensitivity goal for this process in the Phase-I experiment is 3.1×10−153.1×10 −15 ⁠, or 90% upper limit of a branching ratio of 7×10−157×10 −15 ⁠, which is a factor of 100 improvement over the existing limit. The expected number of background events is 0.032. To achieve the target sensitivity and background level, the 3.2 kW 8 GeV proton beam from J-PARC will be used. Two types of detectors, CyDet and StrECAL, will be used for detecting the μμ–ee conversion events, and for measuring the beam-related background events in view of the Phase-II experiment, respectively. Results from simulation on signal and background estimations are also described.
URI
https://pr.ibs.re.kr/handle/8788114/9038
DOI
10.1093/ptep/ptz125
ISSN
2050-3911
Appears in Collections:
Center for Axion and Precision Physics Research(액시온 및 극한상호작용 연구단) > 1. Journal Papers (저널논문)
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