Testing left-right symmetric models

TL;DR

This paper reviews left-right symmetric models, exploring their theoretical foundations, experimental constraints, and the fine-tuning issues in the Higgs sector, highlighting their potential as beyond Standard Model candidates.

Contribution

It provides a comprehensive analysis of the more symmetric LRMs, focusing on their predictiveness, experimental bounds, and Higgs sector fine-tuning challenges.

Findings

LRMs restore symmetry at high energies

Experimental constraints limit model parameters

Higgs sector fine-tuning is significant

Abstract

The difference between left- and right-handed particles is perhaps one of the most puzzling aspects of the Standard Model (SM). In left-right models (LRMs) the symmetry between left- and right-handed particles can be restored at high energy. Due to this symmetry these models are quite predictive with regards to experimental observables, making them interesting beyond the SM candidates. Here we discuss the more symmetric LRMs, the experimental constraints, and the fine-tuning present in the Higgs sector.