Constrained Vector-like quark model with perturbative unitarity

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...

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Bibliographic Details
Published in:arXiv.org 2022-02
Main Authors: Accomando, E, Brannigan, J, Gunn, J, Huyan, Y, Mulligan, S
Format: Article
Language:English
Subjects:
Bosons
Couplings
Quark models
Quarks
Sum rules
Online Access:Get full text
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Summary: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.
ISSN:2331-8422