, 2012:93,
Open Access This content is freely available online to anyone, anywhere at any time.
Date: 19 Apr 2012

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/ψK ± mode, with J/ψμ + μ . The differential production cross-section is measured as a function of the B ± transverse momentum in the fiducial region 0 < p T < 40 GeV/c and with rapidity 2.0 < y < 4.5. The total cross-section, summing up B + and B , is measured to be σ(ppB ± X, 0 < p T < 40 GeV/c, 2.0 < y < 4.5) = 41.4 ± 1.5 (stat.) ± 3.1 (syst.) μb.

ArXiv ePrint: 1202.4812