Measurement of polarization amplitudes and CP asymmetries in B-0 -> phi K*(892)(0)

LHCb collaboration

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Abstract

An angular analysis of the decay B (0) -> phi K (*)(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 root 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+ pi(-) and K+ K- contributions are taken into account and found to be significant. A comparison of the B (0) -> phi K (*)(892)(0) and 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
DOIs
Publication statusPublished - 16 May 2014
Externally publishedYes

Keywords

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

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