Cold electroweak baryogenesis with Standard Model CP violation

TL;DR

This paper investigates a baryogenesis mechanism during a tachyonic electroweak phase transition, using a CP violation source derived from the Standard Model by integrating out quarks.

Contribution

It introduces a novel baryogenesis scenario leveraging a Standard Model CP violation operator obtained through quark integration.

Findings

Demonstrates viability of baryon asymmetry generation during phase transition

Identifies a Standard Model-based CP violation source as sufficient

Provides theoretical framework for electroweak baryogenesis with minimal extensions

Abstract

We study a mechanism that generates the baryon asymmetry of the Universe during a tachyonic electroweak phase transition. We utilize as sole source of CP violation an operator that was recently obtained from the Standard Model by integrating out the quarks.