Measurement of polarization amplitudes and CP asymmetries in B0 → ΦK*(892)0

The LHCb Collaboration

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An angular analysis of the decay B0 → φK∗ (892)0 is reported based on a pp collision data sample, corresponding to an integrated luminosity of 1.0 fb−1, collected at a centre-of-mass energy of √s = 7 TeV with the LHCb detector. The P-wave amplitudes and phases are measured with a greater precision than by previous experiments, and confirm about equal amounts of longitudinal and transverse polarization. The S-wave K+π − and K+K− contributions are taken into account and found to be significant. A comparison of the B0 → φK∗(892)0 and B0 → φK∗(892)0 results shows no evidence for direct CP violation in the rate asymmetry, in the triple-product asymmetries or in the polarization amplitudes and phases.
Original languageEnglish
Article number069
Number of pages24
JournalJournal of High Energy Physics
Issue number5
Publication statusPublished - 2014
Externally publishedYes


  • CP violation
  • Hadron-Hadron Scattering
  • Polarization
  • B physics
  • Flavour Changing Neutral Currents

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