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

The LHCb Collaboration

doi:10.1103/PhysRevD.90.112002

Measurement of CP violation parameters in B⁰ →DK^∗0 decays

The LHCb Collaboration

Research output: Contribution to journal › Article › Research › peer-review

27 Citations (Scopus)

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.

Original language	English
Article number	112002
Number of pages	14
Journal	Physical Review D
Volume	90
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.90.112002
Publication status	Published - 2014
Externally published	Yes

Access to Document

10.1103/PhysRevD.90.112002

285314390-oaFinal published version, 849 KB

Cite this

@article{fa23a4c7baeb41cb8be2d18ee1f6bc2e,

title = "Measurement of CP violation parameters in B0 →DK∗0 decays",

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.",

author = "Ulrik Egede and {The LHCb Collaboration}",

year = "2014",

doi = "10.1103/PhysRevD.90.112002",

language = "English",

volume = "90",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

TY - JOUR

T1 - Measurement of CP violation parameters in B0 →DK∗0 decays

AU - Egede, Ulrik

AU - The LHCb Collaboration

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevD.90.112002

DO - 10.1103/PhysRevD.90.112002

M3 - Article

VL - 90

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 11

M1 - 112002

ER -