Vector-like Multiplets, Mixings and the LHC

International Workshop on Discovery Physics at the LHC

Deandrea, Aldo^1,2

Université de Lyon, France^1

Université Lyon 1, CNRS/IN2P3, UMR5822 IPNL, Villeurbanne Cedex

F-69622, France^2

关键词: Large Hadron Collider;    Standard model;    The standard model;    Tree level;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/623/1/012008/pdf
DOI  :  10.1088/1742-6596/623/1/012008

来源: IOP

【 摘 要 】

Vector-like quarks are an essential ingredient of many extensions of the Standard Model of particle physics. Moreover the presence of more than one vector-like multiplet is a common situation in many models. The interplay of these vector-like multiplet with precision electroweak bounds, flavour and collider phenomenology, especially at the Large Hadron Collider is a important point for the discovery of physics beyond the standard model. I consider the presence of two vector-like multiplets in order to show the constraints on such scenarios from tree-level data and oblique corrections in the case of a completely general flavour mixings with all the three standard model families of quarks. I also describe a framework for studying the interplay of any number of vector-like multiplets.