COMET Phase-I technical design report

Zuber, K. et al. (2020) COMET Phase-I technical design report. Progress of Theoretical and Experimental Physics, 2020(3), 033C01. (doi: 10.1093/ptep/ptz125)

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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 (⁠|$\mu$|–|$e$| conversion, |$\mu^{-}N \rightarrow e^{-}N$|⁠); a lepton flavor-violating process. The experimental sensitivity goal for this process in the Phase-I experiment is |$3.1\times10^{-15}$|⁠, or 90% upper limit of a branching ratio of |$7\times 10^{-15}$|⁠, 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 |$\mu$|–|$e$| 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.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Litchfield, Dr Phillip
Authors: Zuber, K., Zhang, Y., Zhang, J., Zdorovets, M. V., Yudin, Y. V., Yuan, Y., Yoshioka, T., Yoshida, M., Yoshida, H., Yeo, B., Yao, W. C., Yano, T., Yang, Y., Yamane, T., Yamanaka, M., Yamamoto, A., Yamaguchi, H., Xing, T. Y., Wu, C., Wong, T. S., Wong, M. L., Warin-Charpentier, P., Abdullah, W. A. T. W., Vrba, V., Volkov, A., Velicheva, E., Ueno, K., Uchida, Y., Uchida, T., Tsverava, N., Tsamalaidze, Z., Trekov, I., Trang, H., Toriashvili, T., Tomizawa, M., Tomasek, M., Tolmachev, S. S., Tojo, J., Thanh, T., Tevzadze, Y., Teixeira, A. M., Tao, C. V., Tang, J., Tanaka, M., Takayanagi, T., Tachimoto, T., Sugano, M., Stöckinger, D., Slunecka, M., Shoukavy, D., Shigyo, N., Semertzidis, Y. K., Sato, J., Sato, A., Sasaki, K., Sarin, P., Sakamoto, H., Sabirov, B., Rusinov, V., Ruban, A. A., Quémener, G., Ponariadov, V., Picters, D., Paulau, A., Pasternak, J., Ota, T., Omori, C., Okinaka, K., Okamura, T., Okamoto, K., Oishi, K., Ohta, S., Ogitsu, T., O’Dell, J., Numao, T., Noguchi, K., Nishiguchi, H., Nioradze, M., Niess, V., Natori, H., Nash, J., Nakazawa, Y., Nakatsugawa, Y., Nakamura, Y., Nakamoto, T., Nakai, Y., Nakai, H., Motoishi, T., Mori, Y., Moritsu, M., Moiseenko, A., Azmi, K. A. M. K., Mohamad Idris, F., Miyazaki, Y., Miyamoto, N., Mihara, S., Mibe, T., Melnik, A., Melkadze, A., Matsuda, Y., Markin, O., Mao, Y. J., Makida, Y., Macharashvili, G., Loveridge, P., Lomidze, I., Lomidze, D., Loan, T., Li, W. G., Litchfield, R. P., Li, H. B., Lee, M. J., Lai, J., Lagrange, B., Kurup, A., Kurochkin, Y., Kuriyama, Y., Kuno, Y., Kumsiashvili, G., Krikler, B., Kravchenko, M., Kozyrev, A. N., Kozlov, G. A., Kormoll, T., Koike, M., Khvedelidze, A., Kemularia, O., Kazanin, V. F., Kazak, N., Kawashima, R., Kawagoe, K., Katayama, H., Kapusta, F., Kaneva, E., Kalinnikov, V., Kachelhoffer, T., Jonsson, P., Jiang, X. S., Jansen, A., Itahashi, T., Issadykov, A., Ishibashi, K., Iio, M., Ignatov, F. V., Igarashi, Y., Ibrahim, Z. A., Hiasa, T., Hayashi, T., Hayashi, O., Hashimoto, S., Hashim, I. H., Hamada, E., Hai, V. H., Gritsay, K., Grigoriev, D. N., Gillies, E., Gay, P., Gabriel, J. L., Fukao, Y., Fujii, Y., Finger, M., Finger Jr, M., Fedotovich, G. V., Fayer, S., Evtoukhovitch, P., Epshteyn, L. B., Eguchi, Y., Duginov, V., Drutskoy, A., Dornan, P., Devidze, G., Densham, C., Dauncey, P. D., da Silva, W., Cheung, Y. E., Chen, S. J., Chen, J. K., Chau, T. T., Carniol, B., Cârloganu, C., Bondar, A. E., Baygarashev, D., Bauer, D., Ban, Y., Ban, G., Bagaturia, I., Aznabayev, D., Aoki, M., Anishchik, V., Angélique, J. C., Allin, A., Akhmetshin, R. R., Adamov, G., and Abramishvili, R.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Progress of Theoretical and Experimental Physics
Publisher:Oxford University Press s on behalf of the Physical Society of Japan
ISSN:2050-3911
ISSN (Online):2050-3911
Copyright Holders:Copyright © The Author(s) 2020
First Published:First published in Progress of Theoretical and Experimental Physics2020(3):033C01
Publisher Policy:Reproduced under a Creative Commons licence

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