An analysis of the decay B-0 -> J/psi K*(892)(0) is presented using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected in pp collisions at a center-of-mass energy of 7 TeV with the LHCb detector. The polarization amplitudes and the corresponding phases are measured to be vertical bar A(parallel to)vertical bar(2) = 0.227 +/- 0.004 (stat) +/- 0.011 (syst), vertical bar A(perpendicular to)vertical bar(2) = 0.201 +/- 0.004 (stat) +/- 0.008 (syst), delta(parallel to)[rad] = -2.94 +/- 0.02 (stat) +/- 0.03 (syst), and delta(perpendicular to)[rad] = 2.94 +/- 0.02 (stat) +/- 0.02 (syst). Comparing B-0 -> J/psi K*(892)(0) and (B) over bar (0) -> J/psi(K) over bar*(892)(0) decays, no evidence for direct CP violation is found.

Aaij, R., Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2013). Measurement of the polarization amplitudes in B-0 -> J/psi K*(892)(0) decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(5) [10.1103/PhysRevD.88.052002].

Measurement of the polarization amplitudes in B-0 -> J/psi K*(892)(0) decays

CALVI, MARTA;KHANJI, BASEM;KUCHARCZYK, MARCIN;Martinelli, M;PEREGO, DAVIDE LUIGI;PESSINA, GIANLUIGI EZIO;
2013

Abstract

An analysis of the decay B-0 -> J/psi K*(892)(0) is presented using data, corresponding to an integrated luminosity of 1.0 fb(-1), collected in pp collisions at a center-of-mass energy of 7 TeV with the LHCb detector. The polarization amplitudes and the corresponding phases are measured to be vertical bar A(parallel to)vertical bar(2) = 0.227 +/- 0.004 (stat) +/- 0.011 (syst), vertical bar A(perpendicular to)vertical bar(2) = 0.201 +/- 0.004 (stat) +/- 0.008 (syst), delta(parallel to)[rad] = -2.94 +/- 0.02 (stat) +/- 0.03 (syst), and delta(perpendicular to)[rad] = 2.94 +/- 0.02 (stat) +/- 0.02 (syst). Comparing B-0 -> J/psi K*(892)(0) and (B) over bar (0) -> J/psi(K) over bar*(892)(0) decays, no evidence for direct CP violation is found.
Articolo in rivista - Articolo scientifico
Heavy Flavour Physics, LHC Collider
English
2013
88
5
052002
none
Aaij, R., Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2013). Measurement of the polarization amplitudes in B-0 -> J/psi K*(892)(0) decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(5) [10.1103/PhysRevD.88.052002].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/65097
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