Matter-Antimatter Asymmetry - Aspects at Low Energy

TL;DR

This paper discusses the unresolved matter-antimatter asymmetry in the universe, emphasizing the need for low-energy precision experiments to uncover potential mechanisms explaining this fundamental imbalance.

Contribution

It highlights the importance of low-energy experiments in probing matter-antimatter differences and exploring new mechanisms beyond current CP violation understanding.

Findings

Current knowledge of CP violation is insufficient to explain asymmetry

Precision low-energy experiments are crucial for future insights

Identifies potential new mechanisms for matter-antimatter imbalance

Abstract

The apparent dominance of matter over antimatter in our universe is an obvious and puzzling fact which cannot be adequately explained in present physical frameworks that assume matter-antimatter symmetry at the big bang. However, our present knowledge of starting conditions and of known sources of CP violation are both insufficient to explain the observed asymmetry. Therefore ongoing research on matter-antimatter differences is strongly motivated as well as attempts to identify viable new mechanisms that could create the present asymmetry. Here we concentrate on possible precision experiments at low energies towards a resolution of this puzzle.