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

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Abstract

The inclusive b-jet production cross section in pp collisions at a center-of-mass energy of 7TeV 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 < p(T) < 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 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.

Autore Pugliese

Tutti gli autori

  • POMPILI A.;COLALEO A.;MARANGELLI B.;CALABRIA C.;SELVAGGI G.;IASELLI G.;LUSITO L.;BARBONE L.;ABBRESCIA M.;DE PALMA M.;PACIFICO N.;MANNA N.;MY S.;NUZZO S.V.;CHHIBRA S.S

Titolo volume/Rivista

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Anno di pubblicazione

2012

ISSN

1029-8479

ISBN

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Numero di citazioni Wos

16

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Numero di citazioni Scopus

27

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Settori ERC

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Codici ASJC

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