An analysis of B0→DK∗0 decays is presented, where D represents an admixture of D0 and D¯0 mesons reconstructed in four separate final states: K-π+, π-K+, K+K- and π+π-. The data sample corresponds to 3.0fb-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 rB(DK∗0), the magnitude of the ratio of the amplitudes of the decay B0→DK+π- with a b→u or a b→c transition, in a Kπ mass region of ±50MeV/c2 around the K∗(892) mass and for an absolute value of the cosine of the K∗0 helicity angle larger than 0.4.

Measurement of CP violation parameters in B0 →dK∗0 decays / R., A., B., A., M., A., A., A., Z., A., S., A., J., A., F., A., M., A., S., A., G., A., P. A., C., J. a., A., S., A., S., A., Y., A., L., A.n., L., A., J., A., R., A., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 90:(2014). [10.1103/PhysRevD.90.112002]

Measurement of CP violation parameters in B0 →dK∗0 decays

G. Casse;SARTI, ALESSIO;SCIUBBA, Adalberto;
2014

Abstract

An analysis of B0→DK∗0 decays is presented, where D represents an admixture of D0 and D¯0 mesons reconstructed in four separate final states: K-π+, π-K+, K+K- and π+π-. The data sample corresponds to 3.0fb-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 rB(DK∗0), the magnitude of the ratio of the amplitudes of the decay B0→DK+π- with a b→u or a b→c transition, in a Kπ mass region of ±50MeV/c2 around the K∗(892) mass and for an absolute value of the cosine of the K∗0 helicity angle larger than 0.4.
2014
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of CP violation parameters in B0 →dK∗0 decays / R., A., B., A., M., A., A., A., Z., A., S., A., J., A., F., A., M., A., S., A., G., A., P. A., C., J. a., A., S., A., S., A., Y., A., L., A.n., L., A., J., A., R., A., et al.. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 90:(2014). [10.1103/PhysRevD.90.112002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/665088
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