The final results of the search for the lepton flavour violating decay μ^+ → e^+ γ based on the full dataset collected by the MEG experiment at the Paul Scherrer Institut in the period 2009–2013 and totalling 7.5x10^14 stopped muons on target are presented. No significant excess of events is observed in the dataset with respect to the expected background and a new upper limit on the branching ratio of this decay of B(μ^+ → e^+ γ)<4.2x10^-13 (90 % confidence level) is established, which represents the most stringent limit on the existence of this decay to date.
Search for the lepton flavour violating decay μ^+ → e^+ γ with the full dataset of the MEG experiment
CHIARELLO, GIANLUIGI;CHIRI, CLAUDIO;PANAREO, Marco;PEPINO, AURORA;TASSIELLI, GIOVANNI FRANCESCO;
2016-01-01
Abstract
The final results of the search for the lepton flavour violating decay μ^+ → e^+ γ based on the full dataset collected by the MEG experiment at the Paul Scherrer Institut in the period 2009–2013 and totalling 7.5x10^14 stopped muons on target are presented. No significant excess of events is observed in the dataset with respect to the expected background and a new upper limit on the branching ratio of this decay of B(μ^+ → e^+ γ)<4.2x10^-13 (90 % confidence level) is established, which represents the most stringent limit on the existence of this decay to date.File in questo prodotto:
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