# Measurement of the B+- production cross-section in pp collisions at sqrt(s)=7 TeV

Abstract : The production of B+- mesons in proton-proton collisions at sqrt(s)=7 TeV is studied using 35 pb-1 of data collected by the LHCb detector. The B+- mesons are reconstructed exclusively in the B+- -> J/psi K+- mode, with J/psi -> mu+ mu-. The differential production cross-section is measured as a function of the B+- transverse momentum in the fiducial region 0 < pT < 40 GeV/c and with rapidity 2.0 < y < 4.5. The total cross-section, summing up B+ and B-, is measured to be sigma(pp -> B+- X, 0 < pT < 40 GeV/c, 2.0 < y < 4.5) = 41.4 +- 1.5 (stat.) +- 3.1 (syst.) mub.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00680507
Contributor : Sabine Starita <>
Submitted on : Monday, March 19, 2012 - 3:54:29 PM
Last modification on : Monday, July 26, 2021 - 4:12:02 PM

### Citation

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinolfi, C. Adrover, et al.. Measurement of the B+- production cross-section in pp collisions at sqrt(s)=7 TeV. Journal of High Energy Physics, Springer, 2012, 4, pp.093. ⟨10.1007/JHEP04(2012)093⟩. ⟨in2p3-00680507⟩

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