Measurement of the CP violating phase phi(s) in (B)over-bar(s)(0) -> J/psi f(0)(980)
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
Measurement of mixing-induced CP violation in B0
s decays is of prime importance in probing new physics.
So far only the channel B0
s → J/ψφ has been used. Here we report on a measurement using an LHCb
data sample of 0.41 fb−1, in the CP odd eigenstate J/ψ f0(980), where f0(980) → π+π−. A timedependent
fit of the data with the B0
s lifetime and the difference in widths of the heavy and light
eigenstates constrained to the values obtained from B0
s → J/ψφ yields a value of the CP violating phase
of −0.44 ± 0.44 ± 0.02 rad, consistent with the Standard Model expectation.
s decays is of prime importance in probing new physics.
So far only the channel B0
s → J/ψφ has been used. Here we report on a measurement using an LHCb
data sample of 0.41 fb−1, in the CP odd eigenstate J/ψ f0(980), where f0(980) → π+π−. A timedependent
fit of the data with the B0
s lifetime and the difference in widths of the heavy and light
eigenstates constrained to the values obtained from B0
s → J/ψφ yields a value of the CP violating phase
of −0.44 ± 0.44 ± 0.02 rad, consistent with the Standard Model expectation.
Date Issued
2012-02-07
Date Acceptance
2012-01-09
Citation
Physics Letters B, 2012, 707 (5), pp.497-505
ISSN
0370-2693
Publisher
Elsevier: SCOAP3
Start Page
497
End Page
505
Journal / Book Title
Physics Letters B
Volume
707
Issue
5
Copyright Statement
© 2012 CERN. Published by Elsevier B.V. Open access under CC BY-NC-ND license.
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
Physics
PHYSICS, MULTIDISCIPLINARY
LHC
CP violation
Hadronic B decays
(B)over-bar(s)(0) meson
Publication Status
Published