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.

Aaij, R., Abba, A., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2014). Measurement of polarization amplitudes and cp asymmetries in B0 → φK∗(892)0. JOURNAL OF HIGH ENERGY PHYSICS, 2014(5) [10.1007/JHEP05(2014)069].

Measurement of polarization amplitudes and cp asymmetries in B0 → φK∗(892)0

Borsato, M;CALVI, MARTA;CASSINA, LORENZO;GOTTI, CLAUDIO;KHANJI, BASEM;KUCHARCZYK, MARCIN;Martinelli, M;
2014

Abstract

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.
Articolo in rivista - Articolo scientifico
B physics; CP violation; Flavour Changing Neutral Currents; Hadron-Hadron Scattering; Polarization; Nuclear and High Energy Physics
English
2014
2014
5
069
none
Aaij, R., Abba, A., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., et al. (2014). Measurement of polarization amplitudes and cp asymmetries in B0 → φK∗(892)0. JOURNAL OF HIGH ENERGY PHYSICS, 2014(5) [10.1007/JHEP05(2014)069].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/88997
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