Measurement of CP violation parameters and polarisation fractions in B-s(0) -> J/psi(K)over-bar*(0) decays
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
The first measurement of CP asymmetries in the decay B0
s → J/ψ K∗
(892)0 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 B0
s decays to charmonium.
s → J/ψ K∗
(892)0 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 B0
s decays to charmonium.
Date Issued
2015-11-12
Date Acceptance
2015-10-09
Citation
Journal of High Energy Physics, 2015, 2015 (11)
ISSN
1126-6708
Publisher
Springer
Journal / Book Title
Journal of High Energy Physics
Volume
2015
Issue
11
Copyright Statement
© CERN on behalf of the LHCb collaboration, licence CC-BY-4.0.
License URL
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
Hadron-Hadron Scattering
B physics
Flavor physics
CP violation
Branching fraction
DISTRIBUTIONS
FORMALISM
TOOL
Publication Status
Published
Article Number
082