Measurement of the B+ Production Cross Section in pp Collisions at sqrt(s)=7 TeV
Journal Article

Published: Thursday, March 17, 2011
Citation: Physical Review Letters, Volume 106, Number 11, Pages 112001
arXiv.org: 1101.0131
Link: http://prl.aps.org/abstract/PRL/v106/i11/e112001

Authors (1 total): J. Rohlf

Abstract:

Measurements of the total and differential cross sections dσ/dpTB and dσ/dyB for B+ mesons produced in pp collisions at √s=7  TeV are presented. The data correspond to an integrated luminosity of 5.8  pb-1 collected by the CMS experiment operating at the LHC. The exclusive decay B+→J/ψK+, with J/ψ→μ+μ-, is used to detect B+ mesons and to measure the production cross section as a function of pTB and yB. The total cross section for pTB>5  GeV and |yB|<2.4 is measured to be 28.1±2.4±2.0±3.1  μb, where the first uncertainty is statistical, the second is systematic, and the last is from the luminosity measurement.