Gravitational Wave Imprints of Left-Right Symmetric Model with Minimal Higgs Sector

TL;DR

This paper investigates how a minimal left-right symmetric model with a simple Higgs sector can produce detectable gravitational wave signals from early universe phase transitions, linking cosmology and collider physics.

Contribution

It provides a comprehensive analysis of gravitational wave signatures in a minimal left-right symmetric model with a universal seesaw mechanism and explores collider implications.

Findings

Identified parameter regions with detectable gravitational wave signals.

Linked phase transition dynamics to potential collider signatures.

Performed a full thermal potential scan of the model.

Abstract

We study the gravitational wave imprints of left-right symmetric model equipped with universal seesaw mechanism allowing for the natural generation of hierarchical masses of the Standard Model fermions. The scalar sector of this model is the minimal one, consisting of only two Higgs doublets. Following the construction of the full thermal potential for this model, we perform a scan of the entire parameter space and identify the region in which the cosmic phase transition associated with the left-right symmetry breaking gives gravitational wave signals detectable by a variety of planned space-based interferometers. Then we also discuss the relevant collider implications of this beyond the Standard Model scenario.