Constrained Vector-like quark model with perturbative unitarity

2022/02/11 by E. Accomando, Accomando, E., J. Brannigan +7
Physics and Astronomy · #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #High-Energy Particle Collisions Research

paper · pdf · doi:10.48550/arxiv.2202.05936

Abstract

We propose a Vector-like quark (VLQ) model constrained by the requirement of perturbative unitarity. In this scenario, the neutral and charged couplings of the new heavy VLQs to SM quarks and bosons are strictly related. We derive the corresponding sum rules and display the definite structure of the couplings. We analyse, qualitatively, the phenomenological consequences of this model in terms of expected width, production mechanism and decay channels. We show that the upcoming LHC run 3 could have sensitivity to such particles but the search strategy should be adapted to cover wide resonances decaying mainly in the charged channel T(B) -> Wq.

Related

• An extension of the SM with vector-like quarks and hypothetical heavy bosons: model independent parametrisation at NLO order
• Vector-like Quarks
• LHC signatures of vector-like quarks
• A Vector-Like Extension of the Standard Model
• Vector-like tops from first generation quarks: the role of width and coupling chiralities in same-charge production at the LHC