First observations of the rare decays B+→ K+π+π-μ+μ-and B+→ φK+μ+μ-


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Aaij R., Adeva B., Adinolfi M., Affolder A., Ajaltouni Z., Akar S., ...More

Journal of High Energy Physics, vol.2014, no.10, pp.1-18, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2014 Issue: 10
  • Publication Date: 2014
  • Doi Number: 10.1007/jhep10(2014)064
  • Journal Name: Journal of High Energy Physics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1-18
  • Keywords: Rare decay, Hadron-Hadron Scattering, B physics, Flavor physics
  • Open Archive Collection: AVESIS Open Access Collection
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

First observations of the rare decays B+→ K+π+π-μ+μ-and B+→ φK+μ+μ-are presented using data corresponding to an integrated luminosity of 3.0 fb-1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8TeV. The branching fractions of the decays are (Formula Presented.) where the uncertainties are statistical, systematic, and due to the uncertainty on the branching fractions of the normalisation modes. A measurement of the differential branching fraction in bins of the invariant mass squared of the dimuon system is also presented for the decay B+→ K+π+π-μ+μ-.