COMET Phase-I technical design report

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; 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; M. J. 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; H. 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; Y. 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. Yudin; M. V. Zdorovets; J. Zhang; Y. Zhang; K. Zuber

doi:10.1093/ptep/ptz125

COMET Phase-I technical design report

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, 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, M. J. 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, H. 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, Y. 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. Yudin, M. V. Zdorovets, J. Zhang, Y. Zhang, K. Zuber

Research output: Contribution to journal › Article › peer-review

157 Scopus citations

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 (μ-e conversion, μ^-N → e^-N); a lepton flavor-violating process. The experimental sensitivity goal for this process in the Phase-I experiment is 3.1 × 10^-15, or 90% upper limit of a branching ratio of 7 × 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 μ-e 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.

Original language	English
Article number	033C01
Journal	Progress of Theoretical and Experimental Physics
Volume	2020
Issue number	3
DOIs	https://doi.org/10.1093/ptep/ptz125
State	Published - 13 Mar 2020
Externally published	Yes

Access to Document

10.1093/ptep/ptz125

Cite this

Abramishvili, R., Adamov, G., Akhmetshin, R. R., Allin, A., Angélique, J. C., Anishchik, V., Aoki, M., Aznabayev, D., Bagaturia, I., Ban, G., Ban, Y., Bauer, D., Baygarashev, D., Bondar, A. E., Cârloganu, C., Carniol, B., Chau, T. T., Chen, J. K., Chen, S. J., ... Zuber, K. (2020). COMET Phase-I technical design report. Progress of Theoretical and Experimental Physics, 2020(3), Article 033C01. https://doi.org/10.1093/ptep/ptz125

@article{20f2600276ae48b7bcbfb8838facc36f,

title = "COMET Phase-I technical design report",

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 (μ-e conversion, μ-N → e-N); a lepton flavor-violating process. The experimental sensitivity goal for this process in the Phase-I experiment is 3.1 × 10-15, or 90\% upper limit of a branching ratio of 7 × 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 μ-e 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.",

author = "R. Abramishvili and G. Adamov and Akhmetshin, \{R. R.\} and A. Allin and Ang{\'e}lique, \{J. C.\} and V. Anishchik and M. Aoki and D. Aznabayev and I. Bagaturia and G. Ban and Y. Ban and D. Bauer and D. Baygarashev and Bondar, \{A. E.\} and C. C{\^a}rloganu and B. Carniol and Chau, \{T. T.\} and Chen, \{J. K.\} and Chen, \{S. J.\} and Cheung, \{Y. E.\} and \{Da Silva\}, W. and Dauncey, \{P. D.\} and C. Densham and G. Devidze and P. Dornan and A. Drutskoy and V. Duginov and Y. Eguchi and Epshteyn, \{L. B.\} and P. Evtoukhovitch and S. Fayer and Fedotovich, \{G. V.\} and M. Finger and M. Finger and Y. Fujii and Y. Fukao and Gabriel, \{J. L.\} and P. Gay and E. Gillies and Grigoriev, \{D. N.\} and K. Gritsay and Hai, \{V. H.\} and E. Hamada and Hashim, \{I. H.\} and S. Hashimoto and O. Hayashi and T. Hayashi and T. Hiasa and Ibrahim, \{Z. A.\} and Y. Igarashi and Ignatov, \{F. V.\} and M. Iio and K. Ishibashi and A. Issadykov and T. Itahashi and A. Jansen and Jiang, \{X. S.\} and P. Jonsson and T. Kachelhoffer and V. Kalinnikov and E. Kaneva and F. Kapusta and H. Katayama and K. Kawagoe and R. Kawashima and N. Kazak and Kazanin, \{V. F.\} and O. Kemularia and A. Khvedelidze and M. Koike and T. Kormoll and Kozlov, \{G. A.\} and Kozyrev, \{A. N.\} and M. Kravchenko and B. Krikler and G. Kumsiashvili and Y. Kuno and Y. Kuriyama and Y. Kurochkin and A. Kurup and B. Lagrange and J. Lai and Lee, \{M. J.\} and Li, \{H. B.\} and Litchfield, \{R. P.\} and Li, \{W. G.\} and T. Loan and D. Lomidze and I. Lomidze and P. Loveridge and G. Macharashvili and Y. Makida and Mao, \{Y. J.\} and O. Markin and Y. Matsuda and A. Melkadze and A. Melnik and T. Mibe and S. Mihara and N. Miyamoto and Y. Miyazaki and \{Mohamad Idris\}, F. and Azmi, \{K. A.Mohamed Kamal\} and A. Moiseenko and M. Moritsu and Y. Mori and T. Motoishi and H. Nakai and Y. Nakai and T. Nakamoto and Y. Nakamura and Y. Nakatsugawa and Y. Nakazawa and J. Nash and H. Natori and V. Niess and M. Nioradze and H. Nishiguchi and K. Noguchi and T. Numao and J. O'dell and T. Ogitsu and S. Ohta and K. Oishi and K. Okamoto and T. Okamura and K. Okinaka and C. Omori and T. Ota and J. Pasternak and A. Paulau and D. Picters and V. Ponariadov and G. Qu{\'e}mener and Ruban, \{A. A.\} and V. Rusinov and B. Sabirov and H. Sakamoto and P. Sarin and K. Sasaki and A. Sato and J. Sato and Semertzidis, \{Y. K.\} and N. Shigyo and Dz Shoukavy and M. Slunecka and D. St{\"o}ckinger and M. Sugano and T. Tachimoto and T. Takayanagi and M. Tanaka and J. Tang and Tao, \{C. V.\} and Teixeira, \{A. M.\} and Y. Tevzadze and T. Thanh and J. Tojo and Tolmachev, \{S. S.\} and M. Tomasek and M. Tomizawa and T. Toriashvili and H. Trang and I. Trekov and Z. Tsamalaidze and N. Tsverava and T. Uchida and Y. Uchida and K. Ueno and E. Velicheva and A. Volkov and V. Vrba and Abdullah, \{W. A.T.Wan\} and P. Warin-Charpentier and Wong, \{M. L.\} and Wong, \{T. S.\} and C. Wu and Xing, \{T. Y.\} and H. Yamaguchi and A. Yamamoto and M. Yamanaka and T. Yamane and Y. Yang and T. Yano and Yao, \{W. C.\} and B. Yeo and H. Yoshida and M. Yoshida and T. Yoshioka and Y. Yuan and Yudin, \{Yu V.\} and Zdorovets, \{M. V.\} and J. Zhang and Y. Zhang and K. Zuber",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s).",

year = "2020",

month = mar,

day = "13",

doi = "10.1093/ptep/ptz125",

language = "English",

volume = "2020",

journal = "Progress of Theoretical and Experimental Physics",

issn = "2050-3911",

publisher = "Oxford University Press",

number = "3",

}

Abramishvili, R, Adamov, G, Akhmetshin, RR, Allin, A, Angélique, JC, Anishchik, V, Aoki, M, Aznabayev, D, Bagaturia, I, Ban, G, Ban, Y, Bauer, D, Baygarashev, D, Bondar, AE, Cârloganu, C, Carniol, B, Chau, TT, Chen, JK, Chen, SJ, Cheung, YE, Da Silva, W, Dauncey, PD, Densham, C, Devidze, G, Dornan, P, Drutskoy, A, Duginov, V, Eguchi, Y, Epshteyn, LB, Evtoukhovitch, P, Fayer, S, Fedotovich, GV, Finger, M, Finger, M, Fujii, Y, Fukao, Y, Gabriel, JL, Gay, P, Gillies, E, Grigoriev, DN, Gritsay, K, Hai, VH, Hamada, E, Hashim, IH, Hashimoto, S, Hayashi, O, Hayashi, T, Hiasa, T, Ibrahim, ZA, Igarashi, Y, Ignatov, FV, Iio, M, Ishibashi, K, Issadykov, A, Itahashi, T, Jansen, A, Jiang, XS, Jonsson, P, Kachelhoffer, T, Kalinnikov, V, Kaneva, E, Kapusta, F, Katayama, H, Kawagoe, K, Kawashima, R, Kazak, N, Kazanin, VF, Kemularia, O, Khvedelidze, A, Koike, M, Kormoll, T, Kozlov, GA, Kozyrev, AN, Kravchenko, M, Krikler, B, Kumsiashvili, G, Kuno, Y, Kuriyama, Y, Kurochkin, Y, Kurup, A, Lagrange, B, Lai, J, Lee, MJ, Li, HB, Litchfield, RP, Li, WG, Loan, T, Lomidze, D, Lomidze, I, Loveridge, P, Macharashvili, G, Makida, Y, Mao, YJ, Markin, O, Matsuda, Y, Melkadze, A, Melnik, A, Mibe, T, Mihara, S, Miyamoto, N, Miyazaki, Y, Mohamad Idris, F, Azmi, KAMK, Moiseenko, A, Moritsu, M, Mori, Y, Motoishi, T, Nakai, H, Nakai, Y, Nakamoto, T, Nakamura, Y, Nakatsugawa, Y, Nakazawa, Y, Nash, J, Natori, H, Niess, V, Nioradze, M, Nishiguchi, H, Noguchi, K, Numao, T, O'dell, J, Ogitsu, T, Ohta, S, Oishi, K, Okamoto, K, Okamura, T, Okinaka, K, Omori, C, Ota, T, Pasternak, J, Paulau, A, Picters, D, Ponariadov, V, Quémener, G, Ruban, AA, Rusinov, V, Sabirov, B, Sakamoto, H, Sarin, P, Sasaki, K, Sato, A, Sato, J, Semertzidis, YK, Shigyo, N, Shoukavy, D, Slunecka, M, Stöckinger, D, Sugano, M, Tachimoto, T, Takayanagi, T, Tanaka, M, Tang, J, Tao, CV, Teixeira, AM, Tevzadze, Y, Thanh, T, Tojo, J, Tolmachev, SS, Tomasek, M, Tomizawa, M, Toriashvili, T, Trang, H, Trekov, I, Tsamalaidze, Z, Tsverava, N, Uchida, T, Uchida, Y, Ueno, K, Velicheva, E, Volkov, A, Vrba, V, Abdullah, WATW, Warin-Charpentier, P, Wong, ML, Wong, TS, Wu, C, Xing, TY, Yamaguchi, H, Yamamoto, A, Yamanaka, M, Yamane, T, Yang, Y, Yano, T, Yao, WC, Yeo, B, Yoshida, H, Yoshida, M, Yoshioka, T, Yuan, Y, Yudin, YV, Zdorovets, MV, Zhang, J, Zhang, Y & Zuber, K 2020, 'COMET Phase-I technical design report', Progress of Theoretical and Experimental Physics, vol. 2020, no. 3, 033C01. https://doi.org/10.1093/ptep/ptz125

TY - JOUR

T1 - COMET Phase-I technical design report

AU - Abramishvili, R.

AU - Adamov, G.

AU - Akhmetshin, R. R.

AU - Allin, A.

AU - Angélique, J. C.

AU - Anishchik, V.

AU - Aoki, M.

AU - Aznabayev, D.

AU - Bagaturia, I.

AU - Ban, G.

AU - Ban, Y.

AU - Bauer, D.

AU - Baygarashev, D.

AU - Bondar, A. E.

AU - Cârloganu, C.

AU - Carniol, B.

AU - Chau, T. T.

AU - Chen, J. K.

AU - Chen, S. J.

AU - Cheung, Y. E.

AU - Da Silva, W.

AU - Dauncey, P. D.

AU - Densham, C.

AU - Devidze, G.

AU - Dornan, P.

AU - Drutskoy, A.

AU - Duginov, V.

AU - Eguchi, Y.

AU - Epshteyn, L. B.

AU - Evtoukhovitch, P.

AU - Fayer, S.

AU - Fedotovich, G. V.

AU - Finger, M.

AU - Fujii, Y.

AU - Fukao, Y.

AU - Gabriel, J. L.

AU - Gay, P.

AU - Gillies, E.

AU - Grigoriev, D. N.

AU - Gritsay, K.

AU - Hai, V. H.

AU - Hamada, E.

AU - Hashim, I. H.

AU - Hashimoto, S.

AU - Hayashi, O.

AU - Hayashi, T.

AU - Hiasa, T.

AU - Ibrahim, Z. A.

AU - Igarashi, Y.

AU - Ignatov, F. V.

AU - Iio, M.

AU - Ishibashi, K.

AU - Issadykov, A.

AU - Itahashi, T.

AU - Jansen, A.

AU - Jiang, X. S.

AU - Jonsson, P.

AU - Kachelhoffer, T.

AU - Kalinnikov, V.

AU - Kaneva, E.

AU - Kapusta, F.

AU - Katayama, H.

AU - Kawagoe, K.

AU - Kawashima, R.

AU - Kazak, N.

AU - Kazanin, V. F.

AU - Kemularia, O.

AU - Khvedelidze, A.

AU - Koike, M.

AU - Kormoll, T.

AU - Kozlov, G. A.

AU - Kozyrev, A. N.

AU - Kravchenko, M.

AU - Krikler, B.

AU - Kumsiashvili, G.

AU - Kuno, Y.

AU - Kuriyama, Y.

AU - Kurochkin, Y.

AU - Kurup, A.

AU - Lagrange, B.

AU - Lai, J.

AU - Lee, M. J.

AU - Li, H. B.

AU - Litchfield, R. P.

AU - Li, W. G.

AU - Loan, T.

AU - Lomidze, D.

AU - Lomidze, I.

AU - Loveridge, P.

AU - Macharashvili, G.

AU - Makida, Y.

AU - Mao, Y. J.

AU - Markin, O.

AU - Matsuda, Y.

AU - Melkadze, A.

AU - Melnik, A.

AU - Mibe, T.

AU - Mihara, S.

AU - Miyamoto, N.

AU - Miyazaki, Y.

AU - Mohamad Idris, F.

AU - Azmi, K. A.Mohamed Kamal

AU - Moiseenko, A.

AU - Moritsu, M.

AU - Mori, Y.

AU - Motoishi, T.

AU - Nakai, H.

AU - Nakai, Y.

AU - Nakamoto, T.

AU - Nakamura, Y.

AU - Nakatsugawa, Y.

AU - Nakazawa, Y.

AU - Nash, J.

AU - Natori, H.

AU - Niess, V.

AU - Nioradze, M.

AU - Nishiguchi, H.

AU - Noguchi, K.

AU - Numao, T.

AU - O'dell, J.

AU - Ogitsu, T.

AU - Ohta, S.

AU - Oishi, K.

AU - Okamoto, K.

AU - Okamura, T.

AU - Okinaka, K.

AU - Omori, C.

AU - Ota, T.

AU - Pasternak, J.

AU - Paulau, A.

AU - Picters, D.

AU - Ponariadov, V.

AU - Quémener, G.

AU - Ruban, A. A.

AU - Rusinov, V.

AU - Sabirov, B.

AU - Sakamoto, H.

AU - Sarin, P.

AU - Sasaki, K.

AU - Sato, A.

AU - Sato, J.

AU - Semertzidis, Y. K.

AU - Shigyo, N.

AU - Shoukavy, Dz

AU - Slunecka, M.

AU - Stöckinger, D.

AU - Sugano, M.

AU - Tachimoto, T.

AU - Takayanagi, T.

AU - Tanaka, M.

AU - Tang, J.

AU - Tao, C. V.

AU - Teixeira, A. M.

AU - Tevzadze, Y.

AU - Thanh, T.

AU - Tojo, J.

AU - Tolmachev, S. S.

AU - Tomasek, M.

AU - Tomizawa, M.

AU - Toriashvili, T.

AU - Trang, H.

AU - Trekov, I.

AU - Tsamalaidze, Z.

AU - Tsverava, N.

AU - Uchida, T.

AU - Uchida, Y.

AU - Ueno, K.

AU - Velicheva, E.

AU - Volkov, A.

AU - Vrba, V.

AU - Abdullah, W. A.T.Wan

AU - Warin-Charpentier, P.

AU - Wong, M. L.

AU - Wong, T. S.

AU - Wu, C.

AU - Xing, T. Y.

AU - Yamaguchi, H.

AU - Yamamoto, A.

AU - Yamanaka, M.

AU - Yamane, T.

AU - Yang, Y.

AU - Yano, T.

AU - Yao, W. C.

AU - Yeo, B.

AU - Yoshida, H.

AU - Yoshida, M.

AU - Yoshioka, T.

AU - Yuan, Y.

AU - Yudin, Yu V.

AU - Zdorovets, M. V.

AU - Zhang, J.

AU - Zhang, Y.

AU - Zuber, K.

PY - 2020/3/13

Y1 - 2020/3/13

N2 - 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 (μ-e conversion, μ-N → e-N); a lepton flavor-violating process. The experimental sensitivity goal for this process in the Phase-I experiment is 3.1 × 10-15, or 90% upper limit of a branching ratio of 7 × 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 μ-e 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.

AB - 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 (μ-e conversion, μ-N → e-N); a lepton flavor-violating process. The experimental sensitivity goal for this process in the Phase-I experiment is 3.1 × 10-15, or 90% upper limit of a branching ratio of 7 × 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 μ-e 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.

UR - https://www.scopus.com/pages/publications/85082198127

U2 - 10.1093/ptep/ptz125

DO - 10.1093/ptep/ptz125

M3 - Article

AN - SCOPUS:85082198127

SN - 2050-3911

VL - 2020

JO - Progress of Theoretical and Experimental Physics

JF - Progress of Theoretical and Experimental Physics

IS - 3

M1 - 033C01

ER -

COMET Phase-I technical design report

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