Inclusive $b$-jet production in $pp$ collisions at $s=7$ TeV

The CMS Collaboration (2012) Inclusive $b$-jet production in $pp$ collisions at $s=7$ TeV. Journal of High Energy Physics, 04, 084. (doi:10.1007/JHEP04(2012)084).

Record type: Article

Abstract

The inclusive b-jet production cross section in pp collisions at a center-of mass energy of 7 TeV is measured using data collected by the CMS experiment at the LHC. The cross section is presented as a function of the jet transverse momentum in the range 18 < pT < 200 GeV for several rapidity intervals. The results are also given as the ratio of the b-jet production cross section to the inclusive jet production cross section. The measurement is performed with two different analyses, which differ in their trigger selection and b-jet identification: a jet analysis that selects events with a b jet using a sample corresponding to an integrated luminosity of 34 pb⁻¹, and a muon analysis requiring a b-jet with a muon-based on an integrated luminosity of 3pb⁻¹. In both approaches the b-jets are identified by requiring a secondary vertex. The results from the two methods are in agreement with each other and with next-to-leading order calculations, as well as with predictions based on the pythia event generator.

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