High Energy Physics - Experiment
[Submitted on 17 May 2016 (v1), last revised 29 Jul 2016 (this version, v3)]
Title:Search for the Lepton Flavour Violating Decay $μ^{+} \to e^+ γ$ with the Full Dataset of the MEG Experiment
View PDFAbstract:The final results of the search for the lepton flavour violating decay $\mu^{+} \rightarrow {\rm e^{+}} \gamma$ based on the full dataset collected by the MEG experiment at the Paul Scherrer Institut in the period 2009--2013 and totalling $7.5\times 10^{14}$ 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 $BR( \mu^{+} \rightarrow {\rm e^{+}} \gamma ) < 4.2 \times 10^{-13}$ (90\%\ confidence level) is established, which represents the most stringent limit on the existence of this decay to date.
Submission history
From: Fabrizio Cei [view email][v1] Tue, 17 May 2016 09:52:20 UTC (2,337 KB)
[v2] Wed, 18 May 2016 07:08:36 UTC (2,329 KB)
[v3] Fri, 29 Jul 2016 09:39:29 UTC (2,350 KB)
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