New limit on the lepton-flavor-violating decay μ+→e +γ

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, K. Fratini, Y. Fujii, L. Galli, G. Gallucci, F. GattiB. Golden, M. Grassi, D. N. Grigoriev, T. Haruyama, M. Hildebrandt, Y. Hisamatsu, F. Ignatov, T. Iwamoto, P. R. Kettle, B. I. Khazin, O. Kiselev, A. Korenchenko, N. Kravchuk, A. Maki, S. Mihara, W. Molzon, T. Mori, D. Mzavia, H. Natori, D. Nicolò, H. Nishiguchi, Yasuhiro Nishimura, W. Ootani, M. Panareo, A. Papa, R. Pazzi, G. Piredda, A. Popov, F. Renga, S. Ritt, M. Rossella, R. Sawada, F. Sergiampietri, G. Signorelli, S. Suzuki, F. Tenchini, C. Topchyan, Y. Uchiyama, R. Valle, C. Voena, F. Xiao, S. Yamada, A. Yamamoto, S. Yamashita, Yu V. Yudin, D. Zanello

研究成果: Article

213 引用 (Scopus)

抄録

We present a new result based on an analysis of the data collected by the MEG detector at the Paul Scherrer Institut in 2009 and 2010, in search of the lepton-flavor-violating decay μ+→e+γ. The likelihood analysis of the combined data sample, which corresponds to a total of 1.8×1014 muon decays, gives a 90% C.L. upper limit of 2.4×10 -12 on the branching ratio of the μ+→e +γ decay, constituting the most stringent limit on the existence of this decay to date.

元の言語English
記事番号171801
ジャーナルPhysical Review Letters
107
発行部数17
DOI
出版物ステータスPublished - 2011 10 17
外部発表Yes

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leptons
decay
muons
detectors

ASJC Scopus subject areas

  • Physics and Astronomy(all)

これを引用

Adam, J., Bai, X., Baldini, A. M., Baracchini, E., Bemporad, C., Boca, G., ... Zanello, D. (2011). New limit on the lepton-flavor-violating decay μ+→e +γ. Physical Review Letters, 107(17), [171801]. https://doi.org/10.1103/PhysRevLett.107.171801

New limit on the lepton-flavor-violating decay μ+→e +γ. / 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.; Fratini, K.; Fujii, Y.; Galli, L.; Gallucci, G.; Gatti, F.; Golden, B.; Grassi, M.; Grigoriev, D. N.; Haruyama, T.; Hildebrandt, M.; Hisamatsu, Y.; Ignatov, F.; Iwamoto, T.; Kettle, P. R.; Khazin, B. I.; Kiselev, O.; Korenchenko, A.; Kravchuk, N.; Maki, A.; Mihara, S.; Molzon, W.; Mori, T.; Mzavia, D.; Natori, H.; Nicolò, D.; Nishiguchi, H.; Nishimura, Yasuhiro; Ootani, W.; Panareo, M.; Papa, A.; Pazzi, R.; Piredda, G.; Popov, A.; Renga, F.; Ritt, S.; Rossella, M.; Sawada, R.; Sergiampietri, F.; Signorelli, G.; Suzuki, S.; Tenchini, F.; Topchyan, C.; Uchiyama, Y.; Valle, R.; Voena, C.; Xiao, F.; Yamada, S.; Yamamoto, A.; Yamashita, S.; Yudin, Yu V.; Zanello, D.

:: Physical Review Letters, 巻 107, 番号 17, 171801, 17.10.2011.

研究成果: Article

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, Fratini, K, Fujii, Y, Galli, L, Gallucci, G, Gatti, F, Golden, B, Grassi, M, Grigoriev, DN, Haruyama, T, Hildebrandt, M, Hisamatsu, Y, Ignatov, F, Iwamoto, T, Kettle, PR, Khazin, BI, Kiselev, O, Korenchenko, A, Kravchuk, N, Maki, A, Mihara, S, Molzon, W, Mori, T, Mzavia, D, Natori, H, Nicolò, D, Nishiguchi, H, Nishimura, Y, Ootani, W, Panareo, M, Papa, A, Pazzi, R, Piredda, G, Popov, A, Renga, F, Ritt, S, Rossella, M, Sawada, R, Sergiampietri, F, Signorelli, G, Suzuki, S, Tenchini, F, Topchyan, C, Uchiyama, Y, Valle, R, Voena, C, Xiao, F, Yamada, S, Yamamoto, A, Yamashita, S, Yudin, YV & Zanello, D 2011, 'New limit on the lepton-flavor-violating decay μ+→e +γ', Physical Review Letters, 巻. 107, 番号 17, 171801. https://doi.org/10.1103/PhysRevLett.107.171801
Adam J, Bai X, Baldini AM, Baracchini E, Bemporad C, Boca G その他. New limit on the lepton-flavor-violating decay μ+→e +γ. Physical Review Letters. 2011 10 17;107(17). 171801. https://doi.org/10.1103/PhysRevLett.107.171801
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. ; Fratini, K. ; Fujii, Y. ; Galli, L. ; Gallucci, G. ; Gatti, F. ; Golden, B. ; Grassi, M. ; Grigoriev, D. N. ; Haruyama, T. ; Hildebrandt, M. ; Hisamatsu, Y. ; Ignatov, F. ; Iwamoto, T. ; Kettle, P. R. ; Khazin, B. I. ; Kiselev, O. ; Korenchenko, A. ; Kravchuk, N. ; Maki, A. ; Mihara, S. ; Molzon, W. ; Mori, T. ; Mzavia, D. ; Natori, H. ; Nicolò, D. ; Nishiguchi, H. ; Nishimura, Yasuhiro ; Ootani, W. ; Panareo, M. ; Papa, A. ; Pazzi, R. ; Piredda, G. ; Popov, A. ; Renga, F. ; Ritt, S. ; Rossella, M. ; Sawada, R. ; Sergiampietri, F. ; Signorelli, G. ; Suzuki, S. ; Tenchini, F. ; Topchyan, C. ; Uchiyama, Y. ; Valle, R. ; Voena, C. ; Xiao, F. ; Yamada, S. ; Yamamoto, A. ; Yamashita, S. ; Yudin, Yu V. ; Zanello, D. / New limit on the lepton-flavor-violating decay μ+→e +γ. :: Physical Review Letters. 2011 ; 巻 107, 番号 17.
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title = "New limit on the lepton-flavor-violating decay μ+→e +γ",
abstract = "We present a new result based on an analysis of the data collected by the MEG detector at the Paul Scherrer Institut in 2009 and 2010, in search of the lepton-flavor-violating decay μ+→e+γ. The likelihood analysis of the combined data sample, which corresponds to a total of 1.8×1014 muon decays, gives a 90{\%} C.L. upper limit of 2.4×10 -12 on the branching ratio of the μ+→e +γ decay, constituting the most stringent limit on the existence of this decay to date.",
author = "J. Adam and X. Bai and Baldini, {A. M.} and E. Baracchini and C. Bemporad and G. Boca and Cattaneo, {P. W.} and G. Cavoto and F. Cei and C. Cerri and {De Bari}, A. and {De Gerone}, M. and T. Doke and S. Dussoni and J. Egger and K. Fratini and Y. Fujii and L. Galli and G. Gallucci and F. Gatti and B. Golden and M. Grassi and Grigoriev, {D. N.} and T. Haruyama and M. Hildebrandt and Y. Hisamatsu and F. Ignatov and T. Iwamoto and Kettle, {P. R.} and Khazin, {B. I.} and O. Kiselev and A. Korenchenko and N. Kravchuk and A. Maki and S. Mihara and W. Molzon and T. Mori and D. Mzavia and H. Natori and D. Nicol{\`o} and H. Nishiguchi and Yasuhiro Nishimura and W. Ootani and M. Panareo and A. Papa and R. Pazzi and G. Piredda and A. Popov and F. Renga and S. Ritt and M. Rossella and R. Sawada and F. Sergiampietri and G. Signorelli and S. Suzuki and F. Tenchini and C. Topchyan and Y. Uchiyama and R. Valle and C. Voena and F. Xiao and S. Yamada and A. Yamamoto and S. Yamashita and Yudin, {Yu V.} and D. Zanello",
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T1 - New limit on the lepton-flavor-violating decay μ+→e +γ

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 - Fratini, K.

AU - Fujii, Y.

AU - Galli, L.

AU - Gallucci, G.

AU - Gatti, F.

AU - Golden, B.

AU - Grassi, M.

AU - Grigoriev, D. N.

AU - Haruyama, T.

AU - Hildebrandt, M.

AU - Hisamatsu, Y.

AU - Ignatov, F.

AU - Iwamoto, T.

AU - Kettle, P. R.

AU - Khazin, B. I.

AU - Kiselev, O.

AU - Korenchenko, A.

AU - Kravchuk, N.

AU - Maki, A.

AU - Mihara, S.

AU - Molzon, W.

AU - Mori, T.

AU - Mzavia, D.

AU - Natori, H.

AU - Nicolò, D.

AU - Nishiguchi, H.

AU - Nishimura, Yasuhiro

AU - Ootani, W.

AU - Panareo, M.

AU - Papa, A.

AU - Pazzi, R.

AU - Piredda, G.

AU - Popov, A.

AU - Renga, F.

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 - Valle, R.

AU - Voena, C.

AU - Xiao, F.

AU - Yamada, S.

AU - Yamamoto, A.

AU - Yamashita, S.

AU - Yudin, Yu V.

AU - Zanello, D.

PY - 2011/10/17

Y1 - 2011/10/17

N2 - We present a new result based on an analysis of the data collected by the MEG detector at the Paul Scherrer Institut in 2009 and 2010, in search of the lepton-flavor-violating decay μ+→e+γ. The likelihood analysis of the combined data sample, which corresponds to a total of 1.8×1014 muon decays, gives a 90% C.L. upper limit of 2.4×10 -12 on the branching ratio of the μ+→e +γ decay, constituting the most stringent limit on the existence of this decay to date.

AB - We present a new result based on an analysis of the data collected by the MEG detector at the Paul Scherrer Institut in 2009 and 2010, in search of the lepton-flavor-violating decay μ+→e+γ. The likelihood analysis of the combined data sample, which corresponds to a total of 1.8×1014 muon decays, gives a 90% C.L. upper limit of 2.4×10 -12 on the branching ratio of the μ+→e +γ decay, constituting the most stringent limit on the existence of this decay to date.

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DO - 10.1103/PhysRevLett.107.171801

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JO - Physical Review Letters

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