LHC Signatures of Warped-space Vectorlike Quarks

Abstract

We study the LHC signatures of TeV scale vectorlike quarks $b^{\prime }$, $t^{\prime }$ and $\chi$ with electromagnetic charges -1/3, 2/3 and 5/3 that appear in many beyond the standard model (BSM) extensions. We consider warped extra-dimensional models and analyze the phenomenology of such vectorlike quarks that are the custodial partners of third generation quarks. In addition to the usually studied pair-production channels which depend on the strong coupling, we put equal emphasis on single production channels that depend on electroweak couplings and on electroweak symmetry breaking induced mixing effects between the heavy vectorlike quarks and standard model quarks. We identify new promising $gg$-initiated pair and single production channels and find the luminosity required for discovering these states at the LHC. For these channels, we propose a cut that allows one to extract the relevant electroweak couplings. Although the motivation is from warped models, we present many of our results model-independently.

Published version. 40 pages, 19 figures, 12 tables. References added. Minor revisions

References in corpus (26)

• 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
• FeynRules - Feynman rules made easy
• A custodial symmetry for Zbb
• Light custodians in natural composite Higgs models
• A handbook of vector-like quarks: mixing and single production
• The Bulk RS KK-gluon at the LHC
• Model Independent Framework for Searches of Top Partners
• LHC Signals for Warped Electroweak Neutral Gauge Bosons
• Colored Resonant Signals at the LHC: Largest Rate and Simplest Topology
• LHC Signals for Warped Electroweak Charged Gauge Bosons
• Flavour physics of the RS model with KK masses reachable at LHC
• Kaluza--Klein excitations of gauge bosons at the LHC
• Theory and Phenomenology of Exotic Isosinglet Quarks and Squarks
• Resolving the A_{FB}^b puzzle in an extra dimensional model with an extended gauge structure
• Heavy Quarks Above the Top at the Tevatron
• Bounds and Decays of New Heavy Vector-like Top Partners
• Constraining extra-fermion(s) from the Higgs boson data
• Collider Phenomenology of Gauge-Higgs Unification Scenarios in Warped Extra Dimensions
• Higgs production at the LHC in warped extra-dimensional models
• Testing the Littlest Higgs Model with T-parity at the Large Hadron Collider
• Probing RS scenarios of flavour at LHC via leptonic channels
• Light Higgs boson discovery from fermion mixing
• Multi-W Events at LHC from a Warped Extra Dimension with Custodial Symmetry
• Coupling Extraction From Off-Shell Cross-sections
• A Model with Chiral Quarks of Electric Charges -4/3 and 5/3

Cited by in corpus (50)

• On the Interpretation of a Possible $\sim 750$ GeV Particle Decaying into $\gamma \gamma$
• Survey of vector-like fermion extensions of the Standard Model and their phenomenological implications
• Higgs singlet boson as a diphoton resonance in a vector-like quark model
• On the Interpretation of Top Partners Searches
• Vector-like Singlet Quarks: a Roadmap
• Fermionic extensions of the Standard Model in light of the Higgs couplings
• Vector-like top/bottom quark partners and Higgs physics at the LHC
• Search Strategies for Top Partners in Composite Higgs models
• Composite Charge 8/3 Resonances at the LHC
• Top Partner Discovery in the $T\to tZ$ channel at the LHC
• Future Collider Signatures of the Possible 750 GeV State
• Implications of a High-Mass Diphoton Resonance for Heavy Quark Searches
• Search for single production of the vector-like top partner at the 14 TeV LHC
• Higgs Vacuum Stability with Vector-like Fermions
• Roadmap to explore vectorlike quarks decaying to a new scalar or pseudoscalar
• Speculations on the W-Mass Measurement at CDF
• Extra Neutral Scalars with Vector-like Fermions at the LHC
• Search Strategies for TeV Scale Fermionic Top Partners with Charge 2/3
• Search for single production of the heavy vectorlike $T$ quark with $T\to th$ and $h\to \gamma \gamma$ at the high-luminosity LHC
• Discovery prospects of a vectorlike top partner decaying to a singlet boson
• Cancellation in Dark Matter-Nucleon Interactions: the Role of Non-Standard-Model-like Yukawa Couplings
• Machine learning-enhanced search for a vectorlike singlet $B$ quark decaying to a singlet scalar or pseudoscalar
• Exploring maverick top partner decays at the LHC
• Fully hadronic decays of a singly produced vector-like top partner at the LHC
• Vacuum stability in the Standard Model with vector-like fermions
• Reconstruction of Vector-like Top Partner from Fully Hadronic Final States
• Hadronic $b^{\prime }$ search at the LHC with top and W taggers
• Single production of $X_{\pm 5/3}$ and $Y_{\mp 4/3}$ vectorlike quarks at the LHC
• The 750 GeV diphoton excess in a two Higgs doublet model and a singlet scalar model, with vector-like fermions, unitarity constraints, and dark matter implications
• Status and Prospects of the Two-Higgs-Doublet SU(6)/Sp(6) little-Higgs Model and the Alignment Limit
• Vector-like quarks and heavy coloured bosons at the LHC
• Scalar Production in Association with a Z Boson at LHC and ILC: the Mixed Higgs-Radion Case of Warped Models
• Beyond brane-Higgs regularisation: clarifying the method and model
• Search for charged Higgs bosons through vector-like top quark pair production at the LHC
• New signals for vector-like down-type quark in $U(1)$ of $E_6$
• Single production of an exotic bottom partner at LHC
• Fermion Masses and Mixing in General Warped Extra Dimensional Models
• A Higgs in the Warped Bulk and LHC signals
• Coupling Extraction From Off-Shell Cross-sections
• Constraints from Triple Gauge Couplings on Vectorlike Leptons
• Jumping into buckets, or How to decontaminate overlapping fat jets
• Distinguishing Signatures of top-and bottom-type heavy vectorlike quarks at the LHC
• Dissecting new physics models through kinematic edges
• Rigorous treatment of the ${\mathcal{S}}^1/{\mathbb{Z}}_2$ orbifold model with brane-Higgs couplings
• Indian Contributions to LHC Theory
• Effective Theory for Baryogenesis with a Majorana Fermion Pair Coupled to Quarks
• Searching for single production of vectorlike quarks decaying into Wb at a future muon-proton collider
• Tagging fully hadronic exotic decays of the vectorlike $\mathbf{B}$ quark using a graph neural network
• Machine learning tagged boosted dark photon: A signature of fermionic portal matter at the LHC
• Tagging ultra-boosted jets at FCC-hh using machine learning techniques