New limit on the lepton-flavour violating decay $\mu^{+} \to e^{+} \gamma$ - INSPIRE

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New limit on the lepton-flavour violating decay $\mu^{+} \to e^{+} \gamma$

MEG

Collaboration

•

J. Adam
(
- PSI, Villigen and
- Zurich, ETH
)

Jul, 2011

5 pages

Published in:

Phys.Rev.Lett. 107 (2011) 171801

e-Print:

1107.5547 [hep-ex]

DOI:

10.1103/PhysRevLett.107.171801

PDG:

{{\mathit \mu}^{-}}

\rightarrow

{{\mathit e}^{-}}{{\mathit \gamma}}

Experiments:

PSI-R-99-05

View in:

ADS Abstract Service

reference search333 citations

Citations per year

Abstract: (arXiv)

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 flavour violating decay mu->e gamma. The likelihood analysis of the combined data sample, which corresponds to a total of 1.8 x 10**14 muon decays, gives a 90% C.L. upper limit of 2.4 x 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.

Note:

5 pages, 2 figures, accepted for publication at Phys. Rev. Lett

11.30.Hv
12.60.Jv
13.35.Bv
12.10.Dm
Muon decay
Lepton flavour violation
muon+: radiative decay
lepton: flavor: violation
muon+: branching ratio: upper limit
at rest

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Figures(5)

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