The analysis of a combined data set, totaling 3.6 X 10(14) stopped muons on target, in the search for the lepton flavor violating decay mu(+) -> e(+) gamma 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 X 10(-13) (90% confidence level). This represents a four times more stringent limit than the previous world best limit set by MEG.

New Constraint on the Existence of the mu(+) -> e(+) gamma Decay

CEI, FABRIZIO;NICOLO', DONATO;Papa A;TENCHINI, FRANCESCO;
2013

Abstract

The analysis of a combined data set, totaling 3.6 X 10(14) stopped muons on target, in the search for the lepton flavor violating decay mu(+) -> e(+) gamma 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 X 10(-13) (90% confidence level). This represents a four times more stringent limit than the previous world best limit set by MEG.
Adam, J; Bai, X; Baldini, Am; Baracchini, E; Bemporad, C; Boca, G; Cattaneo, Pw; Cavoto, G; Cei, Fabrizio; 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; Nardo, R; Natori, H; Nicolo', Donato; 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, Francesco; Topchyan, C; Uchiyama, Y; Voena, C; Xiao, F; Yamada, S; Yamamoto, A; Yamashita, S; Yudin, Yv; Zanello, D.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/208714
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