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arXiv 2202.05936hep-ph
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具有微扰么正性的约束类矢量夸克模型

Constrained Vector-like quark model with perturbative unitarity

E. Accomando, J. Brannigan, J. Gunn, Y. Huyan, S. Mulligan

摘要:

我们提出了一个受微扰么正性约束的类矢量夸克(VLQ)模型。在这种情况下,新的重VLQs到SM夸克和玻色子的中性和带电耦合是严格相关的。我们导出了相应的求和规则,并给出了耦合的确定结构。我们分析,定性,这个模型的预期宽度,生产机制和衰变通道的唯象后果。我们表明,即将到来的LHC运行3可能对这些粒子具有敏感性,但搜索策略应适应于覆盖主要在带电通道T(B)-> Wq中衰减的宽共振。

英文摘要:

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.

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