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

Inclusive $b$-jet production in $pp$ collisions at $s=7$ TeV
Inclusive $b$-jet production in $pp$ collisions at $s=7$ TeV
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 abjetwithamuonbasedonanintegratedluminosityof3pb−1. Inbothapproachestheb 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.
1029-8479
084
Chatrchyan, Serguei
23ce6af5-bdd2-435c-92c8-9b1b71a261ee
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
The CMS Collaboration
Chatrchyan, Serguei
23ce6af5-bdd2-435c-92c8-9b1b71a261ee
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Chatrchyan, Serguei and Belyaev, Alexander , The CMS Collaboration (2012) Inclusive $b$-jet production in $pp$ collisions at $s=7$ TeV. The 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 abjetwithamuonbasedonanintegratedluminosityof3pb−1. Inbothapproachestheb 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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Published date: 2012
Organisations: Physics & Astronomy

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Local EPrints ID: 411288
URI: https://eprints.soton.ac.uk/id/eprint/411288
ISSN: 1029-8479
PURE UUID: 8f194f64-dc4e-4cfc-b42d-1f2aea00adbd
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 16 Jun 2017 16:32
Last modified: 15 Mar 2019 01:33

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Author: Serguei Chatrchyan
Author: Alexander Belyaev ORCID iD

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