Measurement of polarization amplitudes and CP asymmetries in B 0 → Φk *(892)0


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

Journal of High Energy Physics, vol.2014, no.5, 2014 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 2014 Issue: 5
  • Publication Date: 2014
  • Doi Number: 10.1007/jhep05(2014)069
  • Journal Name: Journal of High Energy Physics
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: CP violation, Hadron-Hadron Scattering, Polarization, B physics, Flavour Changing Neutral Currents
  • Open Archive Collection: AVESIS Open Access Collection
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

An angular analysis of the decay B 0 → 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 sqrt{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 B 0 → ΦK *(892)0 and {overline{B}} 0}\to \phi {overline{K}} {*}}{left({892} \right)} 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. [Figure not available: see fulltext.] © 2014 The Author(s).