Measurement of CP violation parameters and polarisation fractions in Bs 0→J/ψK decays

The CMS Collaboration

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Abstract

Abstract: The first measurement of CP asymmetries in the decay (Formula Presented.) and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0, the results are used to constrain additional contributions due to penguin diagrams in the CP -violating phase ϕs, measured through Bs 0 decays to charmonium.[Figure not available: see fulltext.]

Original languageEnglish (US)
Article number82
Pages (from-to)1-38
Number of pages38
JournalJournal of High Energy Physics
Volume2015
Issue number11
DOIs
StatePublished - Nov 1 2015

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Keywords

  • B physics
  • Branching fraction
  • CP violation
  • Flavor physics
  • Hadron-Hadron Scattering

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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