Probing the baryogenesis and dark matter relaxed in phase transition by gravitational waves and colliders

TL;DR

This paper explores a cosmological phase transition mechanism involving Q-balls that can simultaneously explain baryogenesis and dark matter, and investigates how to detect this scenario through collider experiments and gravitational wave observations.

Contribution

It introduces a novel approach to probe baryogenesis and dark matter via collider signals and gravitational waves within a phase transition framework involving Q-balls.

Findings

Constraints on dark matter masses are relaxed.

Collider signals at NLO can probe the scenario.

Gravitational wave signals provide additional detection prospects.

Abstract

The cosmological phase transition with Q-balls production mechanism can explain the baryogenesis and dark matter simultaneously, where constraints on dark matter masses and reverse dilution are significantly relaxed. We study how to probe this scenario by collider signals at QCD next-to-leading order and gravitational wave signals.