Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays
File(s)
Published version
OA Location
Author(s)
Type
Journal Article
Abstract
The B± meson production asymmetry in pp collisions is measured using B+→¯D0π+ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC at center-of-mass energies of √s=7 and 8 TeV. The production asymmetries, integrated over transverse momenta in the range 2<pT<30 GeV/c, and rapidities in the range 2.1<y<4.5 are measured to be Aprod(B+,√s=7 TeV)=(−0.41±0.49±0.10)×10−2, Aprod(B+,√s=8 TeV)=(−0.53±0.31±0.10)×10−2, where the first uncertainties are statistical and the second are systematic. These production asymmetries are used to correct the raw asymmetries of B+→J/ψK+ decays, thus allowing a measurement of the CP asymmetry, ACP(B+→J/ψK+)=(0.09±0.27±0.07)×10−2.
Date Issued
2017-03-22
Date Acceptance
2017-03-01
Citation
PHYSICAL REVIEW D, 2017, 95 (5)
ISSN
2470-0010
Publisher
American Physical Society
Journal / Book Title
PHYSICAL REVIEW D
Volume
95
Issue
5
Copyright Statement
© 2017 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000399254100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Physical Sciences
Astronomy & Astrophysics
Physics, Particles & Fields
Physics
TEV PP COLLISIONS
hep-ex
Publication Status
Published
Article Number
ARTN 052005