Search for W' to tb in proton-proton collisions at sqrt(s) = 8 TeV

Abstract

A search is performed for the production of a massive W' boson decaying to a top and a bottom quark. The data analysed correspond to an integrated luminosity of 19.7 inverse femtobarns collected with the CMS detector at the LHC in proton-proton collisions at sqrt(s) = 8 TeV. The hadronic decay products of the top quark with high Lorentz boost from the W' boson decay are detected as a single top flavoured jet. The use of jet substructure algorithms allows the top quark jet to be distinguished from standard model QCD background. Limits on the production cross section of a right-handed W' boson are obtained, together with constraints on the left-handed and right-handed couplings of the W' boson to quarks. The production of a right-handed W' boson with a mass below 2.02 TeV decaying to a hadronic final state is excluded at 95% confidence level. This mass limit increases to 2.15 TeV when both hadronic and leptonic decays are considered, and is the most stringent lower mass limit to date in the tb decay mode.

Replaced with published version. Added journal reference and DOI

References in corpus (13)

• Matching NLO QCD computations with Parton Shower simulations: the POWHEG method
• Pileup subtraction using jet areas
• Description and performance of track and primary-vertex reconstruction with the CMS tracker
• The RooFit toolkit for data modeling
• Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV
• Searches for new physics using the ttbar invariant mass distribution in pp collisions at sqrt(s)=8 TeV
• Search for new resonances decaying via WZ to leptons in proton-proton collisions at sqrt(s) = 8 TeV
• Search for W-prime boson resonances decaying to a top quark and a bottom quark
• Search for $W^{\prime }\to t\bar{b}$ in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Search for W' to tb decays in the lepton + jets final state in pp collisions at sqrt(s) = 8 TeV
• Search for $W^{\prime }\to tb\to qqbb$ Decays in pp Collisions at $\sqrt{s}$ = 8 TeV with the ATLAS Detector
• Search for resonant diboson production in the lvjj decay channels with the ATLAS detector at 7 TeV
• Differential and total cross sections for top pair and single top production

Cited by in corpus (10)

• Jet Substructure at the Large Hadron Collider: Experimental Review
• Identification of high transverse momentum top quarks in $pp$ collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Multiboson production in W' decays
• Search for heavy resonances decaying to a top quark and a bottom quark in the lepton+jets final state in proton-proton collisions at 13 TeV
• Electroweak symmetry breaking and collider signatures in the next-to-minimal composite Higgs model
• The ATLAS Diboson Resonance in Non-Supersymmetric SO(10)
• Search for W' bosons decaying to a top and a bottom quark at $\sqrt{s}=$ 13 TeV in the hadronic final state
• Direct Constraints, Flavor Physics, and Flavor Anomalies in Composite Higgs Models
• Signals of a 2 TeV $W^{\prime }$ boson and a heavier $Z^{\prime }$ boson
• Minimal left-right symmetric intersecting D-brane model