New limit on the lepton-flavor-violating decay μ+→e+γ.
- Adam J Paul Scherrer Institut PSI, CH-5232 Villigen, Switzerland.
- 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
- 2011-11-24
Published in:
- Physical review letters. - 2011
English
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 1.8×10(14) 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.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1103/PhysRevLett.107.171801
- PMID 22107507
- Persistent URL
- https://sonar.ch/global/documents/212998
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