New constraint on the existence of the μ+→e +γ decay

J. Adam; X. Bai; A. M. Baldini; E. Baracchini; C. Bemporad; G. Boca; P. W. Cattaneo; G. Cavoto; F. Cei; C. Cerri; A. De Bari; M. De Gerone; T. Doke; S. Dussoni; J. Egger; Y. Fujii; L. Galli; F. Gatti; B. Golden; M. Grassi; A. Graziosi; D. N. Grigoriev; T. Haruyama; M. Hildebrandt; Y. Hisamatsu; F. Ignatov; T. Iwamoto; D. Kaneko; P. R. Kettle; B. I. Khazin; N. Khomotov; O. Kiselev; A. Korenchenko; N. Kravchuk; G. Lim; A. Maki; S. Mihara; W. Molzon; T. Mori; D. Mzavia; R. Nardò; H. Natori; D. Nicolò; H. Nishiguchi; Y. Nishimura; W. Ootani; M. Panareo; A. Papa; G. Piredda; A. Popov; F. Renga; E. Ripiccini; S. Ritt; M. Rossella; R. Sawada; F. Sergiampietri; G. Signorelli; S. Suzuki; F. Tenchini; C. Topchyan; Y. Uchiyama; C. Voena; F. Xiao; S. Yamada; A. Yamamoto; S. Yamashita; Z. You; Yu V. Yudin; D. Zanello

doi:10.1103/PhysRevLett.110.201801

New constraint on the existence of the μ⁺→e ⁺γ decay

J. Adam, X. Bai, A. M. Baldini, E. Baracchini, C. Bemporad, G. Boca, P. W. Cattaneo, G. Cavoto, F. Cei, C. Cerri, A. De Bari, M. De Gerone, T. Doke, S. Dussoni, J. Egger, Y. Fujii, L. Galli, F. Gatti, B. Golden, M. GrassiA. Graziosi, D. N. Grigoriev, T. Haruyama, M. Hildebrandt, Y. Hisamatsu, F. Ignatov, T. Iwamoto, D. Kaneko, P. R. Kettle, B. I. Khazin, N. Khomotov, O. Kiselev, A. Korenchenko, N. Kravchuk, G. Lim, A. Maki, S. Mihara, W. Molzon, T. Mori, D. Mzavia, R. Nardò, H. Natori, D. Nicolò, H. Nishiguchi, Y. Nishimura, W. Ootani, M. Panareo, A. Papa, G. Piredda, A. Popov, F. Renga, E. Ripiccini, S. Ritt, M. Rossella, R. Sawada, F. Sergiampietri, G. Signorelli, S. Suzuki, F. Tenchini, C. Topchyan, Y. Uchiyama, C. Voena, F. Xiao, S. Yamada, A. Yamamoto, S. Yamashita, Z. You, Yu V. Yudin, D. Zanello

研究成果: Article › 査読

475 被引用数 (Scopus)

抄録

The analysis of a combined data set, totaling 3.6×1014 stopped muons on target, in the search for the lepton flavor violating decay μ⁺→e⁺γ is presented. The data collected by the MEG experiment at the Paul Scherrer Institut show no excess of events compared to background expectations and yield a new upper limit on the branching ratio of this decay of 5.7×10^-13 (90% confidence level). This represents a four times more stringent limit than the previous world best limit set by MEG.

本文言語	English
論文番号	201801
ジャーナル	Physical review letters
巻	110
号	20
DOI	https://doi.org/10.1103/PhysRevLett.110.201801
出版ステータス	Published - 2013 5月 13
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1103/PhysRevLett.110.201801

他のファイルとリンク

引用スタイル

Adam, J., Bai, X., Baldini, A. M., Baracchini, E., Bemporad, C., Boca, G., Cattaneo, P. W., Cavoto, G., Cei, F., Cerri, C., De Bari, A., De Gerone, M., Doke, T., Dussoni, S., Egger, J., Fujii, Y., Galli, L., Gatti, F., Golden, B., ... Zanello, D. (2013). New constraint on the existence of the μ⁺→e ⁺γ decay. Physical review letters, 110(20), [201801]. https://doi.org/10.1103/PhysRevLett.110.201801

Adam, J, Bai, X, Baldini, AM, Baracchini, E, Bemporad, C, Boca, G, Cattaneo, PW, Cavoto, G, Cei, F, Cerri, C, De Bari, A, De Gerone, M, Doke, T, Dussoni, S, Egger, J, Fujii, Y, Galli, L, Gatti, F, Golden, B, Grassi, M, Graziosi, A, Grigoriev, DN, Haruyama, T, Hildebrandt, M, Hisamatsu, Y, Ignatov, F, Iwamoto, T, Kaneko, D, Kettle, PR, Khazin, BI, Khomotov, N, Kiselev, O, Korenchenko, A, Kravchuk, N, Lim, G, Maki, A, Mihara, S, Molzon, W, Mori, T, Mzavia, D, Nardò, R, Natori, H, Nicolò, D, Nishiguchi, H, Nishimura, Y, Ootani, W, Panareo, M, Papa, A, Piredda, G, Popov, A, Renga, F, Ripiccini, E, Ritt, S, Rossella, M, Sawada, R, Sergiampietri, F, Signorelli, G, Suzuki, S, Tenchini, F, Topchyan, C, Uchiyama, Y, Voena, C, Xiao, F, Yamada, S, Yamamoto, A, Yamashita, S, You, Z, Yudin, YV & Zanello, D 2013, 'New constraint on the existence of the μ⁺→e ⁺γ decay', Physical review letters, vol. 110, no. 20, 201801. https://doi.org/10.1103/PhysRevLett.110.201801

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abstract = "The analysis of a combined data set, totaling 3.6×1014 stopped muons on target, in the search for the lepton flavor violating decay μ+→e+γ is presented. The data collected by the MEG experiment at the Paul Scherrer Institut show no excess of events compared to background expectations and yield a new upper limit on the branching ratio of this decay of 5.7×10-13 (90% confidence level). This represents a four times more stringent limit than the previous world best limit set by MEG.",

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AU - Adam, J.

AU - Bai, X.

AU - Baldini, A. M.

AU - Baracchini, E.

AU - Bemporad, C.

AU - Boca, G.

AU - Cattaneo, P. W.

AU - Cavoto, G.

AU - Cei, F.

AU - Cerri, C.

AU - De Bari, A.

AU - De Gerone, M.

AU - Doke, T.

AU - Dussoni, S.

AU - Egger, J.

AU - Fujii, Y.

AU - Galli, L.

AU - Gatti, F.

AU - Golden, B.

AU - Grassi, M.

AU - Graziosi, A.

AU - Grigoriev, D. N.

AU - Haruyama, T.

AU - Hildebrandt, M.

AU - Hisamatsu, Y.

AU - Ignatov, F.

AU - Iwamoto, T.

AU - Kaneko, D.

AU - Kettle, P. R.

AU - Khazin, B. I.

AU - Khomotov, N.

AU - Kiselev, O.

AU - Korenchenko, A.

AU - Kravchuk, N.

AU - Lim, G.

AU - Maki, A.

AU - Mihara, S.

AU - Molzon, W.

AU - Mori, T.

AU - Mzavia, D.

AU - Nardò, R.

AU - Natori, H.

AU - Nicolò, D.

AU - Nishiguchi, H.

AU - Nishimura, Y.

AU - Ootani, W.

AU - Panareo, M.

AU - Papa, A.

AU - Piredda, G.

AU - Popov, A.

AU - Renga, F.

AU - Ripiccini, E.

AU - Ritt, S.

AU - Rossella, M.

AU - Sawada, R.

AU - Sergiampietri, F.

AU - Signorelli, G.

AU - Suzuki, S.

AU - Tenchini, F.

AU - Topchyan, C.

AU - Uchiyama, Y.

AU - Voena, C.

AU - Xiao, F.

AU - Yamada, S.

AU - Yamamoto, A.

AU - Yamashita, S.

AU - You, Z.

AU - Yudin, Yu V.

AU - Zanello, D.

PY - 2013/5/13

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