Non-resonant Diagrams for Single Production of Top and Bottom Partners

Abstract

The search for Top and Bottom Partners is a major focus of analyses at both the ATLAS and CMS experiments. When singly produced, these vector-like partners of the Standard Model third generation quarks retain a sizeable cross-section that makes them attractive search candidates in their respective topologies. While most efforts have concentrated on the resonant mode for single production of these hypothetical particles, the most dominant mode at narrow widths, recent studies have revealed a wide and rich phenomenology involving the non-resonant diagrams. In this letter we categorically investigate the impact of the non-resonant diagrams on different Top and Bottom partner single production topologies and their impact on the inclusive cross-section estimation. We also propose a parameterization for calculating the the correction factor to the single vector-like quark production cross-section when such diagrams are included.

References in corpus (30)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• MadGraph 5 : Going Beyond
• The Minimal Composite Higgs Model
• Bounds on Universal Extra Dimensions
• QCD Matrix Elements + Parton Showers
• The Littlest Higgs
• Light custodians in natural composite Higgs models
• A handbook of vector-like quarks: mixing and single production
• Matrix Elements and Parton Showers in Hadronic Interactions
• Identifying top partners at LHC
• Finite Higgs mass without Supersymmetry
• Model Independent Framework for Searches of Top Partners
• Impact of a Higgs boson at a mass of 126 GeV on the standard model with three and four fermion generations
• On the Interpretation of Top Partners Searches
• Dynamical Gauge-Higgs Unification in the Electroweak Theory
• Search for pair production of up-type vector-like quarks and for four-top-quark events in final states with multiple $b$-jets with the ATLAS detector
• QCD next-to-leading-order predictions matched to parton showers for vector-like quark models
• Search for pair production of vector-like quarks in the bW$\overline{\mathrm{b}}$W channel from proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Search for single production of a vector-like T quark decaying to a Z boson and a top quark in proton-proton collisions at $\sqrt{s}=$13 TeV
• Novel signatures for vector-like quarks
• Next-to-leading-order predictions for single vector-like quark production at the LHC
• Search for single production of vector-like quarks decaying to a top quark and a W boson in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Implications of Higgs Searches on the Four Generation Standard Model
• Search for single production of vector-like quarks decaying into $Wb$ in $pp$ collisions at $\sqrt{s}=$ 8 TeV with the ATLAS detector
• Single production of vector-like quarks with large width at the Large Hadron Collider
• Production of extra quarks at the Large Hadron Collider beyond the Narrow Width Approximation
• Search for single production of vector-like quarks decaying to a b quark and a Higgs boson
• Search for electroweak production of a vector-like T quark using fully hadronic final states
• Novel Interpretation Strategy for Searches of Singly Produced Vector-like Quarks at the LHC
• Higgs naturalness and the scalar boson proliferation instability problem