An analysis of B0 → D K*0 decays is presented, where D represents an admixture of D0 and anti-D0 mesons reconstructed in four separate final states: K− π+, π− K+, K+ K− and π+ π−. The data sample corresponds to 3.0 fb^−1 of proton-proton collision, collected by the LHCb experiment. Measurements of several observables are performed, including CP asymmetries. The most precise determination is presented of r_B(D K*0), the magnitude of the ratio of the amplitudes of the decay B0 → D K+ π− with a b → u or a b → c transition, in a K π mass region of ±50 MeV/c^2 around the K∗(892) mass and for an absolute value of the cosine of the K*0 helicity angle larger than 0.4.

R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, et al. (2014). Measurement of CP Violation Parameters in B0 → D K*0 Decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 90(11), 1-14 [10.1103/PhysRevD.90.112002].

Measurement of CP Violation Parameters in B0 → D K*0 Decays

CARBONE, ANGELO;GALLI, DOMENICO;MOGGI, NICCOLO';MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;
2014

Abstract

An analysis of B0 → D K*0 decays is presented, where D represents an admixture of D0 and anti-D0 mesons reconstructed in four separate final states: K− π+, π− K+, K+ K− and π+ π−. The data sample corresponds to 3.0 fb^−1 of proton-proton collision, collected by the LHCb experiment. Measurements of several observables are performed, including CP asymmetries. The most precise determination is presented of r_B(D K*0), the magnitude of the ratio of the amplitudes of the decay B0 → D K+ π− with a b → u or a b → c transition, in a K π mass region of ±50 MeV/c^2 around the K∗(892) mass and for an absolute value of the cosine of the K*0 helicity angle larger than 0.4.
2014
R. Aaij, B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, et al. (2014). Measurement of CP Violation Parameters in B0 → D K*0 Decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 90(11), 1-14 [10.1103/PhysRevD.90.112002].
R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; G. Alkhazov; P. Alvarez Cartelle; A...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/391544
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