Measurement of the production cross section for a W boson and two b jets in pp collisions at sqrt(s) = 7 TeV

Abstract

The production cross section for a W boson and two b jets is measured using proton-proton collisions at sqrt(s) = 7 TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity of 5.0 inverse femtobarns. The W + b b-bar events are selected in the W to mu nu decay mode by requiring a muon with transverse momentum pt > 25 GeV and pseudorapidity abs(eta) < 2.1, and exactly two b-tagged jets with pt > 25 GeV and abs(eta) < 2.4. The measured W + b b-bar production cross section in the fiducial region, calculated at the level of final-state particles, is sigma(pp to W + b b-bar) x B(W to mu nu) = 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 + b b-bar system are in agreement with the predictions of a simulation using MADGRAPH and PYTHIA.

Replaced with published version. Added journal reference and DOI

References in corpus (19)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• PYTHIA 6.4 Physics and Manual
• Parton distributions for the LHC
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• New parton distributions for collider physics
• Pileup subtraction using jet areas
• The Catchment Area of Jets
• MCFM for the Tevatron and the LHC
• Electroweak gauge boson production at hadron colliders through O(alpha_s^2)
• Performance of CMS muon reconstruction in pp collision events at sqrt(s) = 7 TeV
• The PDF4LHC Working Group Interim Recommendations
• NLO vector-boson production matched with shower in POWHEG
• The PDF4LHC Working Group Interim Report
• Measurement of the single-top-quark t-channel cross section in pp collisions at sqrt(s) = 7 TeV
• Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV
• Early LHC Underlying Event Data - Findings and Surprises
• Measurement of the production cross sections for a Z boson and one or more b jets in pp collisions at sqrt(s) = 7 TeV
• QCD corrections to the hadronic production of a heavy quark pair and a W-boson including decay correlations

Cited by in corpus (22)

• Search for resonant t t-bar production in proton-proton collisions at sqrt(s) = 8 TeV
• Search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Study of $W$ boson production in association with beauty and charm
• Associated production of a $W$ boson and massive bottom quarks at next-to-next-to-leading order in QCD
• Search for dark matter in events with energetic, hadronically decaying top quarks and missing transverse momentum at $\sqrt{s}=$ 13 TeV
• Search for dark matter produced in association with heavy-flavor quarks in proton-proton collisions at sqrt(s) = 13 TeV
• Disentangling Heavy Flavor at Colliders
• Search for s channel single top quark production in pp collisions at sqrt(s) = 7 and 8 TeV
• Measurements of the production cross-section for a $Z$ boson in association with $b$-jets in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Measurement of the production cross section of a W boson in association with two b jets in pp collisions at sqrt(s) = 8 TeV
• Search for intrinsic charm in vector boson production accompanied by heavy flavor jets
• NLO QCD Predictions for $Wb\bar{b}$ Production in Association with up to Three Light Jets at the LHC
• Measurement of $b$-hadron pair production with the ATLAS detector in proton-proton collisions at $\sqrt{s}=8$ TeV
• Measurement of forward $t\overline{t}$, $W+b\overline{b}$ and $W+c\overline{c}$ production in $pp$ collisions at $\sqrt{s}=8$ TeV
• Wbbj production at NLO with POWHEG+MiNLO
• Production of electroweak bosons at hadron colliders: theoretical aspects
• Stairway to discovery: a report on the CMS programme of cross section measurements from millibarns to femtobarns
• Vector Bosons and Jets in Proton Collisions
• Review of single vector boson production in pp collisions at $\sqrt{s}=7$ TeV
• Electroweak Gauge-Boson Production in Association with b Jets at Hadron Colliders
• Heavy quark jets at the LHC
• W, Z and photon production at the LHC