Measurement of the CP-violating phase φs in B-s0→J/ψπ+π- decays

Academic Article


  • The mixing-induced CP-violating phase φs in Bs0 and B-s0 decays is measured using the J/ψπ +π - final state in data, taken from 3 fb-1 of integrated luminosity, collected with the LHCb detector in 7 and 8 TeV centre-of-mass pp collisions at the LHC. A time-dependent flavour-tagged amplitude analysis, allowing for direct CP violation, yields a value for the phase φs = 70 ± 68 ± 8 mrad. This result is consistent with the Standard Model expectation and previous measurements. © 2014 The Authors.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Aaij R; Adeva B; Adinolfi M; Affolder A; Ajaltouni Z; Akar S; Albrecht J; Alessio F; Alexander M; Ali S
  • Start Page

  • 186
  • End Page

  • 195
  • Volume

  • 736