Some aspects of CP violation and gauge interactions in the standard model and beyond

TL;DR

This thesis explores CP violation manifestations like EDMs in the Standard Model and beyond, and develops a generalized effective field theory for gauge boson interactions across various Lie algebras and grand unification models.

Contribution

It introduces a generalized effective field theory for gauge bosons extending the Euler-Heisenberg Lagrangian to arbitrary Lie algebras and grand unification groups.

Findings

CP violation effects in weak and strong sectors analyzed

Effective field theory for gauge bosons generalized to multiple Lie algebras

Potential implications for grand unification models

Abstract

In this PhD thesis, we first look at some manifestations of CP violation, such as electric dipole moments (EDMs) of elementary particles, both in the weak sector in the presence of neutrino masses (absent in the SM) as well as in the strong sector. Then, in a second study, we build an effective field theory for gauge bosons. We generalize the Euler-Heisenberg Lagrangian for the study of photon interactions, considered as the archetype of an effective field theory; to gauge bosons of arbitrary Lie algebras, several Grand Unification groups and some mixed symmetries.