Invisibles 2021 Workshop

CP Violation in the Minimal Linear σ Model

Not scheduled

10m

Online

Poster session only Poster Session

Speaker

Mr Javier Alonso González (Instituto de Física Teórica UAM-CSIC)

Description

The Minimal Linear $\sigma$ Model is a useful theoretical laboratory. One can investigate in a perturbative renormalisable model the properties of the Higgs boson as a pseudo-Goldstone boson, the phenomenological effects of the radial mode of the field $s$ which spontaneously breaks the global $SO(5)$ symmetry and the validity of conclusions based on the Effective Field Thery (EFT) approach with the field $s$ in the spectrum, after the decoupling of heavy degrees of freedom. In this paper all those issues are discussed in the framework of the Minimal Linear $\sigma$ Model with CP violating phases leading to pseudoscalar components in the effective Standard Model Yukawa couplings. Also the character of the electroweak phase transition in the presence of the field $s$ is investigated.

Presentation materials

javier_alonso_Invisibles21_poster.pdf