An analysis of the decay B0 → J/ψ 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 |A∥|^2 = 0.227 ± 0.004 (stat) ± 0.011 (syst), |A⊥|^2 = 0.201 ± 0.004 (stat) ± 0.008 (syst), δ∥[rad] = −2.94 ± 0.02 (stat) ± 0.03 (syst), and δ⊥[rad] = 2.94 ± 0.02 (stat) ± 0.02 (syst). Comparing B0 → J/ψ K*(892)0 and anti-B0 → J/ψ anti-K*(892)0 decays, no evidence for direct CP violation is found.

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Measurement of the Polarization Amplitudes in B0 → J/ψ K*(892)0 Decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(5), 1-12 [10.1103/PhysRevD.88.052002].

Measurement of the Polarization Amplitudes in B0 → J/ψ K*(892)0 Decays

CARBONE, ANGELO;GALLI, DOMENICO;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2013

Abstract

An analysis of the decay B0 → J/ψ 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 |A∥|^2 = 0.227 ± 0.004 (stat) ± 0.011 (syst), |A⊥|^2 = 0.201 ± 0.004 (stat) ± 0.008 (syst), δ∥[rad] = −2.94 ± 0.02 (stat) ± 0.03 (syst), and δ⊥[rad] = 2.94 ± 0.02 (stat) ± 0.02 (syst). Comparing B0 → J/ψ K*(892)0 and anti-B0 → J/ψ anti-K*(892)0 decays, no evidence for direct CP violation is found.
2013
R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, A. Affolder, et al. (2013). Measurement of the Polarization Amplitudes in B0 → J/ψ K*(892)0 Decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(5), 1-12 [10.1103/PhysRevD.88.052002].
R. Aaij; C. Abellan Beteta; B. Adeva; M. Adinolfi; C. Adrover; A. Affolder; Z. Ajaltouni; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/173464
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