Search for the lepton flavour violating decay τ− → μ−μ+μ−


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Zhong L., Aaij R., Adeva B., Adinolfi M., Affolder A., Ajaltouni Z., ...More

Journal of High Energy Physics, vol.2015, no.2, pp.1-20, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2015 Issue: 2
  • Publication Date: 2015
  • Doi Number: 10.1007/jhep02(2015)121
  • Journal Name: Journal of High Energy Physics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1-20
  • Keywords: Rare decay, Tau Physics, Hadron-Hadron Scattering
  • Open Archive Collection: AVESIS Open Access Collection
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

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