Search for single production of vectorlike $B$-quarks at the LHC

Abstract

New vectorlike quarks have been proposed in many scenarios of new physics beyond the Standard Model, which address the hierarchy problem and may be potentially discovered at the Large Hadron Collider~(LHC). Based on a model-independent framework, we propose to search for the vectorlike $B$-quark~(VLQ-$B$) and focus on resonant production via $b$-gluon fusion through chromomagnetic interactions. We then explore the possible signals of the VLQ-$B$ through the $B\to tW$ decay mode at the 14 TeV LHC. After a rapid simulation of signal and background events, the $2\sigma$ excluded regions and the $5\sigma$ discovery reach in the parameter plane of ${\kappa }_B-M_B$ are obtained at the LHC with an integrated luminosity of 300~(3000) fb${}^{-1}$ in the dilepton final states.

16 pages, 7 figures. This is the version accepted by Chinese Physics C

References in corpus (21)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• An Introduction to PYTHIA 8.2
• Vector boson pair production at the LHC
• Vector boson production at hadron colliders: a fully exclusive QCD calculation at NNLO
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Top-tagging: A Method for Identifying Boosted Hadronic Tops
• Designing and recasting LHC analyses with MadAnalysis 5
• QCD next-to-leading-order predictions matched to parton showers for vector-like quark models
• Measurement of top quark-antiquark pair production in association with a W or Z boson in pp collisions at sqrt(s) = 8 TeV
• Extending Higgs Inflation with TeV Scale New Physics
• A search for bottom-type, vector-like quark pair production in a fully hadronic final state in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Exotic Vector-Like Quark Phenomenology in the Minimal Linear $\sigma$ Model
• Search for single production of the vector-like top partner at the 14 TeV LHC
• Search for single production of a top quark partner via the $T\to th$ and $h\to W{W}^{\ast }$ channels at the LHC
• Quark Excitations Through the Prism of Direct Photon Plus Jet at the LHC
• Search for vector-like bottom quark via $Zb$ production at the LHC
• Looking for a vectorlike B quark at LHC using jet substructure
• Hadronic $b^{\prime }$ search at the LHC with top and W taggers
• Single production of vectorlike $B$ quarks at the CLIC
• Search for Excited Quarks in $q\bar{q}\to \gamma \gamma$ at the LHC
• Search for a heavy resonance decaying into a top quark and a W boson in the lepton+jets final state at $\sqrt{s}=$13 TeV

Cited by in corpus (5)

• Search for pair production of the heavy vectorlike top partner in same-sign dilepton signature at the HL-LHC
• Search for charged Higgs bosons through vector-like top quark pair production at the LHC
• Search for single vector-like $B$ quark production in hadronic final states at the LHC
• Pair production of the singlet vector-like B quark at the CLIC
• Impact of hidden heavy Higgs channels of VLB-Quarks below 1 TeV in 2HDM