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Title: Measurement of the production cross section for a W boson and two b jets in pp collisions at $$\sqrt{s}$$=7 TeV

Abstract

In this study, the production cross section for a W boson and two b jets is measured using proton-proton collisions at √s = 7 TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity of 5.0 fb –1. The W + bb¯ events are selected in the W to mu nu decay mode by requiring a muon with transverse momentum p T > 25 GeV and pseudorapidity |η| < 2.1, and exactly two b-tagged jets with p T > 25 GeV and |η| < 2.4. The measured W + bb¯ production cross section in the fiducial region, calculated at the level of final-state particles, is σ(pp → W + bb¯) x B(W → μν) = 0.53 ± 0.05 (stat.) ± 0.09 (syst.) ± 0.06 (theo.) ± 0.01 (lum.) pb, in agreement with the standard model prediction. In addition, kinematic distributions of the W + bb¯ system are in agreement with the predictions of a simulation using MADGRAPH and PYTHIA.

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Org.:
CMS Collaboration
OSTI Identifier:
1198088
Alternate Identifier(s):
OSTI ID: 1151712
Report Number(s):
FERMILAB-PUB-13-605-CMS
Journal ID: ISSN 0370-2693; arXiv eprint number arXiv:1312.6608; TRN: US1601021
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 735; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CMS; physics; SMP

Citation Formats

Chatrchyan, Serguei. Measurement of the production cross section for a W boson and two b jets in pp collisions at $\sqrt{s}$=7 TeV. United States: N. p., 2014. Web. doi:10.1016/j.physletb.2014.06.041.
Chatrchyan, Serguei. Measurement of the production cross section for a W boson and two b jets in pp collisions at $\sqrt{s}$=7 TeV. United States. doi:10.1016/j.physletb.2014.06.041.
Chatrchyan, Serguei. Wed . "Measurement of the production cross section for a W boson and two b jets in pp collisions at $\sqrt{s}$=7 TeV". United States. doi:10.1016/j.physletb.2014.06.041.
@article{osti_1198088,
title = {Measurement of the production cross section for a W boson and two b jets in pp collisions at $\sqrt{s}$=7 TeV},
author = {Chatrchyan, Serguei},
abstractNote = {In this study, the production cross section for a W boson and two b jets is measured using proton-proton collisions at √s = 7 TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity of 5.0 fb–1. The W + bb¯ events are selected in the W to mu nu decay mode by requiring a muon with transverse momentum pT > 25 GeV and pseudorapidity |η| < 2.1, and exactly two b-tagged jets with pT > 25 GeV and |η| < 2.4. The measured W + bb¯ production cross section in the fiducial region, calculated at the level of final-state particles, is σ(pp → W + bb¯) x B(W → μν) = 0.53 ± 0.05 (stat.) ± 0.09 (syst.) ± 0.06 (theo.) ± 0.01 (lum.) pb, in agreement with the standard model prediction. In addition, kinematic distributions of the W + bb¯ system are in agreement with the predictions of a simulation using MADGRAPH and PYTHIA.},
doi = {10.1016/j.physletb.2014.06.041},
journal = {Physics Letters. Section B},
number = C,
volume = 735,
place = {United States},
year = {2014},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2014.06.041

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Cited by: 15 works
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