Inclusive b-hadron production cross section with muons in pp collisions at sqrt(s) = 7 TeV

Details Inclusive b-hadron production cross section with muons in pp collisions at sqrt(s) = 7 TeV Inclusive b-hadron production cross section with muons in pp collisions at sqrt(s) = 7 TeV

2011-01-18

arxiv.org/abs/1101.3512v1

JHEP 3 (2011) 90

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1007/JHEP03(2011)090

A measurement of the b-hadron production cross section in proton-proton collisions at sqrt(s)=7 TeV is presented. The dataset, corresponding to 85 inverse nanobarns, was recorded with the CMS experiment at the LHC using a low-threshold single-muon trigger. Events are selected by the presence of a muon with transverse momentum greater than 6 GeV with respect to the beam direction and pseudorapidity less than 2.1. The transverse momentum of the muon with respect to the closest jet discriminates events containing b hadrons from background. The inclusive b-hadron production cross section is presented as a function of muon transverse momentum and pseudorapidity. The measured total cross section in the kinematic acceptance is sigma(pp to b+X to mu + X') =1.32 +/- 0.01 (stat) +/- 0.30 (syst) +/- 0.15 (lumi) microbarns.

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