%0 Journal Article
%T Measurement of the B-+/- production cross-section in pp collisions at root s=7 and 13 TeV
%A LHCb Collaboration (Aaij, R. et al
%A Garcia Martin, L. M.
%A Henry, L.
%A Martinez-Vidal, F.
%A Oyanguren, A.
%A Remon Alepuz, C.
%A Ruiz Valls, P.
%A Ruiz Vidal, J.
%A Sanchez Mayordomo, C.
%J Journal of High Energy Physics
%D 2017
%V 12
%N 12
%I Springer
%@ 1029-8479
%G English
%F LHCbCollaborationAaij_etal2017
%O WOS:000417757900004
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3427), last updated on Thu, 04 Jan 2018 14:12:31 +0000
%X The production of B +/- mesons is studied in pp collisions at centre-of-mass energies of 7 and 13 TeV, using B-+/- -> J/psi K-+/- decays and data samples corresponding to 1.0 fb(-1) and 0.3 fb(-1), respectively. The production cross-sections summed over both charges and integrated over the transverse momentum range 0 < pT < 40 GeV/c and the rapidity range 2.0 < y < 4.5 are measured to be sigma-(pp -> B-+/- X, root s = 7 TeV) = 43.0 +/- 0.2 +/- 2.5 +/- 1.7 μb, sigma(pp -> B-+/- X, root s = 13 TeV) = 86.6 +/- 0.5 +/- 5.4 +/- 3.4 μb, where the first uncertainties are statistical, the second are systematic, and the third are due to the limited knowledge of the B-+/- -> J/psi K-+/- branching fraction. The ratio of the cross-section at 13 TeV to that at 7 TeV is determined to be 2.02 +/- 0.02 (stat) +/- 0.12 (syst). Differential cross-sections are also reported as functions of pi, and y. All results are in agreement with theoretical calculations based on the state-of-art fixed next-to-leading order quantum chromodynamics.
%K B physics
%K Hadron-Hadron scattering (experiments)
%K Particle and resonance production
%R 10.1007/JHEP12(2017)026
%U http://arxiv.org/abs/1710.04921
%U https://doi.org/10.1007/JHEP12(2017)026
%P 026-25pp