Evidence for associated production of a single top quark and W boson in pp collisions at sqrt(s) = 7 TeV

Abstract

Evidence is presented for the associated production of a single top quark and W boson in pp collisions at sqrt(s) = 7 TeV with the CMS experiment at the LHC. The analyzed data corresponds to an integrated luminosity of 4.9 inverse femtobarns. The measurement is performed using events with two leptons and a jet originated from a b quark. A multivariate analysis based on kinematic properties is utilized to separate the t t-bar background from the signal. The observed signal has a significance of 4.0 sigma and corresponds to a cross section of 16 +5 -4 pb, in agreement with the standard model expectation of 15.6 +/-0.4 +1.0 -1.2 pb.

arXiv commentReplaced with published version. Added journal reference and DOI

References in corpus (20)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• The anti-k_t jet clustering algorithm
• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• MadGraph 5 : Going Beyond
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Single-top hadroproduction in association with a W boson
• FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order
• Single Top Production as a Window to Physics Beyond the Standard Model
• Observation of Single Top-Quark Production
• Next-to-next-to-leading soft-gluon corrections for the top quark cross section and transverse momentum distribution
• Measurement of the t-channel single top-quark production cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• The t W- Mode of Single Top Production
• Measurement of the t-channel single top quark production cross section in pp collisions at sqrt(s) = 7 TeV
• Evidence for the associated production of a W boson and a top quark in ATLAS at sqrt(s) = 7 TeV
• Search for New Physics via Single Top Production at the LHC
• Single Top Quark at Future Hadron Colliders. Complete Signal and Background Study
• Isolating Wt production at the LHC
• Single top and Higgs associated production at the LHC

Cited by in corpus (67)

• HATHOR for single top-quark production: Updated predictions and uncertainty estimates for single top-quark production in hadronic collisions
• Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states
• O new physics, where art thou? A global search in the top sector
• Observation of the associated production of a single top quark and a W boson in pp collisions at sqrt(s) = 8 TeV
• tWH associated production at the LHC
• Search for gluino mediated bottom- and top-squark production in multijet final states in pp collisions at 8 TeV
• NNLO QCD Corrections to t-channel Single Top-Quark Production and Decay
• Evidence for single top-quark production in the $s$-channel in proton-proton collisions at $\sqrt{s}=$8 TeV with the ATLAS detector using the Matrix Element Method
• Measurement of the production cross-section of a single top quark in association with a $W$ boson at 8 TeV with the ATLAS experiment
• Off-shell single-top production at NLO matched to parton showers
• Measurement of the cross-section for producing a $W$ boson in association with a single top quark in $pp$ collisions at $\sqrt{s}=13$ TeV with ATLAS
• Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Measurement of the t t-bar production cross section using events in the e mu final state in pp collisions at sqrt(s) = 13 TeV
• Measurement of the W-boson helicity in top-quark decays from ttbar production in lepton+jets events in pp collisions at sqrt(s) = 7 TeV
• Top-quark production in proton-nucleus and nucleus-nucleus collisions at LHC energies and beyond
• Evidence for s-channel single top quark production in $p\bar{p}$ collisions at $\sqrt{s}$ = 1.96 TeV
• Soft-gluon corrections for $tW$ production at N${}^3$LO
• Search for s-channel single top-quark production in proton-proton collisions at $\sqrt{s}$=8 TeV with the ATLAS detector
• Single top-quark production at the Tevatron and the LHC
• Studying the $Wtb$ vertex structure using recent LHC results
• Top-Quark Physics: Status and Prospects
• Measurement of differential cross-sections of a single top quark produced in association with a $W$ boson at $\sqrt{s}=13$ TeV with ATLAS
• New limits on anomalous contributions to the $Wtb$ vertex
• Single top quark production at the LHC
• Evidence for $s$-channel Single-Top-Quark Production in Events with one Charged Lepton and two Jets at CDF
• The $W\gamma$ decay of the elusive charged Higgs boson in the two-Higgs-doublet model with vectorlike fermions
• Top physics at the LHC
• Probing anomalous $Wtb$ couplings at the LHC in single top quark production through $t$-channel
• Soft-gluon corrections in top-quark production
• Non-Abelian family symmetries as portals to dark matter
• Measurement of R = \boldmath$\mathcal{B}(t\to Wb)/\mathcal{B}(t\to Wq)$ in Top--quark--pair Decays using Lepton+jets Events and the Full CDF Run II Data set
• Search for single b*-quark production with the ATLAS detector at sqrt(s)=7 TeV
• Top-quark physics at the Large Hadron Collider
• Probing the top quark chromoelectric and chromomagnetic dipole moments in single top $tW$-channel at the LHC
• Measurement of single top-quark production in association with a $W$ boson in the single-lepton channel at $\sqrt{s}=8$ TeV with the ATLAS detector
• Measurement of the Single Top Quark Production Cross Section and |Vtb| in Events with One Charged Lepton, Large Missing Transverse Energy, and Jets at CDF
• Momentum-space threshold resummation in $tW$ production at the LHC
• Analytic two-loop master integrals for $tW$ production at hadron colliders: I
• Global Constraints on Top Quark Anomalous Couplings
• Limits on the anomalous $Wtq$ couplings
• Stealth QCD-like Strong Interactions and the t-tbar Asymmetry
• Observation of tW production in the single-lepton channel in pp collisions at $\sqrt{s}$ = 13 TeV
• One-loop squared amplitudes for hadronic $tW$ production at next-to-next-to-leading order in QCD
• Anomalous top charged-current contact interactions in single top production at the LHC
• Top Couplings: pre-Snowmass Energy Frontier 2013 Overview
• Mixing asymmetries in B meson systems, the D0 like-sign dimuon asymmetry and generic New Physics
• Single top and top pair production
• Measurement of single top-quark production in association with a $W$ boson in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Light axigluon and single top production at the LHC
• High-order threshold corrections for top-pair and single-top production
• Top Quark Anomalous Couplings at the High-Luminosity Phase of the LHC
• Single Top Physics at Hadron Colliders
• Staying on Top of SMEFT-Likelihood Analyses
• Experimental Studies of Top Quark Production
• Results on TOP physics from CMS
• Top-pair and $tW$ production at approximate N${}^3$LO
• Top Cross-Sections and Single Top
• Constraining dimension-6 SMEFT with higher-order predictions for $pp\to tW$
• Total and differential cross sections for Higgs and top-quark production
• Probing top quark anomalous moments in $W$ boson associated single top quark production at the LHC using polarization and spin correlation
• Single-top and top-antitop cross sections
• A Global Analysis of the Standard Model Effective Field Theory in the Production and Decay Channels of a Single Top Quark
• Limits on anomalous top quark gauge couplings from Tevatron and LHC data
• Single top quark measurements with CMS
• Top quark transverse momentum and rapidity distributions
• Measurements of Electroweak Top Production at the LHC
• Approximate N${}^2$LO and N${}^3$LO QCD Predictions for $tW$ Production