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 mu(+)e(+)gamma. 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 mu(+)e(+)gamma decay, constituting the most stringent limit on the existence of this decay to date.
New Limit on the Lepton-Flavor-Violating Decay mu(+) -> e(+)gamma
CEI, FABRIZIO;NICOLO', DONATO;Papa A;TENCHINI, FRANCESCO;
2011-01-01
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 mu(+)e(+)gamma. 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 mu(+)e(+)gamma decay, constituting the most stringent limit on the existence of this decay to date.File in questo prodotto:
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