Measurement of the effective B-S(0) -> J/psi K-S(0) lifetime
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
This paper reports the first measurement of the effective B0
s → J/ψK0
S lifetime and an updated measurement
of its time-integrated branching fraction. Both measurements are performed with a data sample,
corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions, recorded by the LHCb experiment
in 2011 at a centre-of-mass energy of 7 TeV. The results are: τ eff
J/ψK0
S
= 1.75 ± 0.12 (stat) ± 0.07 (syst) ps
and B(B0
s → J/ψK0
S) = (1.97 ± 0.23) × 10−5. For the latter measurement, the uncertainty includes both
statistical and systematic sources.
s → J/ψK0
S lifetime and an updated measurement
of its time-integrated branching fraction. Both measurements are performed with a data sample,
corresponding to an integrated luminosity of 1.0 fb−1 of pp collisions, recorded by the LHCb experiment
in 2011 at a centre-of-mass energy of 7 TeV. The results are: τ eff
J/ψK0
S
= 1.75 ± 0.12 (stat) ± 0.07 (syst) ps
and B(B0
s → J/ψK0
S) = (1.97 ± 0.23) × 10−5. For the latter measurement, the uncertainty includes both
statistical and systematic sources.
Date Issued
2013-08-11
Date Acceptance
2013-04-25
Citation
Nuclear Physics B, 2013, 873 (2), pp.275-292
ISSN
0550-3213
Publisher
Elsevier: SCOAP3
Start Page
275
End Page
292
Journal / Book Title
Nuclear Physics B
Volume
873
Issue
2
Copyright Statement
© 2013 CERN. This article is published Open Access at sciencedirect.com. It is distributed under the terms of the Creative Commons Attribution License 3.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited.
License URL
Subjects
Science & Technology
Physical Sciences
Physics, Particles & Fields
Physics
PHYSICS, PARTICLES & FIELDS
CP-VIOLATION
EXTRACTING GAMMA
DECAY
TOOL
Publication Status
Published