The inclusive b-jet production cross section in pp collisions at a center-ofmass 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 3 pb−1. In both approaches the bjets are identified by requiring a secondary vertex. The results from the two methods arein agreement with each other and with next-to-leading order calculations, as well as with predictions based on the pythia event generator.

### Inclusive b-jet production in pp collisions at $\sqrt {s} = 7TeV$

#### Abstract

The inclusive b-jet production cross section in pp collisions at a center-ofmass 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 3 pb−1. In both approaches the bjets are identified by requiring a secondary vertex. The results from the two methods arein agreement with each other and with next-to-leading order calculations, as well as with predictions based on the pythia event generator.
##### Scheda breve Scheda completa Scheda completa (DC)
2012
84
1
36
File in questo prodotto:
File
art%3A10.1007%2FJHEP04%282012%29084.pdf

Accesso aperto

Tipo di file: PDF EDITORIALE
Dimensione 735.53 kB
Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/117164