Abstract
A search for the lepton flavour violating decay τ− → μ−μ+μ− is performed with the LHCb experiment. The data sample corresponds to an integrated luminosity of 1.0 fb−1 of proton-proton collisions at a centre-of-mass energy of 7 TeV and 2.0 fb−1 at 8 TeV. No evidence is found for a signal, and a limit is set at 90% confidence level on the branching fraction, B(τ− → μ−μ+μ−) < 4.6 × 10−8.
Original language | English |
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Article number | 121 |
Number of pages | 20 |
Journal | Journal of High Energy Physics |
Volume | 2015 |
Issue number | 2 |
DOIs | |
Publication status | Published - 18 Feb 2015 |
Keywords
- Hadron-Hadron Scattering
- Rare decay
- Tau Physics
ASJC Scopus subject areas
- Nuclear and High Energy Physics