Searches for violation of lepton flavour and baryon number in tau lepton decays at LHCb
Collaboration
10 pages
Published in:
- Phys.Lett.B 724 (2013) 36-45
- Published: Jul 9, 2013
e-Print:
- 1304.4518 [hep-ex]
Report number:
- LHCB-PAPER-2013-014,
- CERN-PH-EP-2013-062
Experiments:
Citations per year
Abstract: (Elsevier)
Searches for the lepton flavour violating decay τ−→μ−μ+μ− and the lepton flavour and baryon number violating decays τ−→p¯μ+μ− and τ−→pμ−μ− have been carried out using proton–proton collision data, corresponding to an integrated luminosity of 1.0 fb−1 , taken by the LHCb experiment at s=7 TeV . No evidence has been found for any signal, and limits have been set at 90% confidence level on the branching fractions: B(τ−→μ−μ+μ−)<8.0×10−8 , B(τ−→p¯μ+μ−)<3.3×10−7 and B(τ−→pμ−μ−)<4.4×10−7 . The results for the τ−→p¯μ+μ− and τ−→pμ−μ− decay modes represent the first direct experimental limits on these channels.Note:
- 20 pages, 10 figures, submitted to Physics Letters B
- lepton: flavor: violation
- tau: leptonic decay
- tau: semileptonic decay
- baryon number: violation
- p p: scattering
- LHC-B
- tau-: branching ratio: upper limit
- tau- --> 2muon+ muon-
- tau- --> anti-p muon+ muon-
- tau- --> p 2muon-
References(0)
Figures(1)
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