Measurement of CP violation parameters and polarisation fractions in Bs0→J/ψK∗0 decays

The LHCb Collaboration

doi:10.1007/JHEP11(2015)082

Measurement of CP violation parameters and polarisation fractions in B_s⁰→J/ψK^∗0decays

The LHCb Collaboration

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

20 Citations (Scopus)

Abstract

The first measurement of CP asymmetries in the decay (Formula Presented.) and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0, the results are used to constrain additional contributions due to penguin diagrams in the CP -violating phase ϕs, measured through Bs 0 decays to charmonium.

Original language	English
Article number	82
Pages (from-to)	1-38
Number of pages	38
Journal	Journal of High Energy Physics
Volume	2015
Issue number	11
DOIs	https://doi.org/10.1007/JHEP11(2015)082
Publication status	Published - 2015
Externally published	Yes

Keywords

Hadron-Hadron Scattering
B physics
Flavor physics
CP violation
Branching fraction

Access to Document

10.1007/JHEP11(2015)082

284506399-oaFinal published version, 1.97 MB

Cite this

@article{172a9b6db4054f07ab2c60d02dc26b05,

title = "Measurement of CP violation parameters and polarisation fractions in Bs0→J/ψK∗0 decays",

abstract = "The first measurement of CP asymmetries in the decay (Formula Presented.) and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0, the results are used to constrain additional contributions due to penguin diagrams in the CP -violating phase ϕs, measured through Bs 0 decays to charmonium.",

keywords = "Hadron-Hadron Scattering, B physics, Flavor physics, CP violation, Branching fraction",

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

year = "2015",

doi = "10.1007/JHEP11(2015)082",

language = "English",

volume = "2015",

pages = "1--38",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer-Verlag London Ltd.",

number = "11",

}

TY - JOUR

T1 - Measurement of CP violation parameters and polarisation fractions in Bs0→J/ψK∗0 decays

AU - Egede, Ulrik

AU - Hadavizadeh, Tom

AU - The LHCb Collaboration

PY - 2015

Y1 - 2015

N2 - The first measurement of CP asymmetries in the decay (Formula Presented.) and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0, the results are used to constrain additional contributions due to penguin diagrams in the CP -violating phase ϕs, measured through Bs 0 decays to charmonium.

AB - The first measurement of CP asymmetries in the decay (Formula Presented.) and an updated measurement of its branching fraction and polarisation fractions are presented. The results are obtained using data corresponding to an integrated luminosity of 3.0 fb−1 of proton-proton collisions recorded with the LHCb detector at centre-of-mass energies of 7 and 8 TeV. Together with constraints from B0 → J/ψ ρ0, the results are used to constrain additional contributions due to penguin diagrams in the CP -violating phase ϕs, measured through Bs 0 decays to charmonium.

KW - Hadron-Hadron Scattering

KW - B physics

KW - Flavor physics

KW - CP violation

KW - Branching fraction

U2 - 10.1007/JHEP11(2015)082

DO - 10.1007/JHEP11(2015)082

M3 - Article

SN - 1029-8479

VL - 2015

SP - 1

EP - 38

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 11

M1 - 82

ER -