Precision Physics with Muons : A Decade of Theoretical and Experimental Advances

TL;DR

This paper reviews recent experimental and theoretical progress in muon physics, highlighting advances in muon decay studies, magnetic moment measurements, and searches for new physics beyond the Standard Model over the past decade.

Contribution

It provides a comprehensive overview of recent developments, experimental techniques, and future prospects in muon physics, emphasizing the potential for discovering new fundamental particles and interactions.

Findings

Significant improvements in muon magnetic and electric dipole moment measurements.

Enhanced sensitivity in searches for charged lepton flavor violation.

Implications for models involving light new particles like axions or hidden sectors.

Abstract

The muon has been instrumental in establishing the Standard Model of particle physics and continues to play a key role in exploring the nature of New Physics. A global program is underway to enhance the discovery potential of a wide range of muon probes, with significant increases in sensitivity anticipated over the next decade. In this review, we examine recent experimental advancements in the study of muon decays, the determination of the muon magnetic and electric dipole moments, and the search for charged lepton flavor violating transitions. We explore the implications for scenarios of physics beyond the Standard Model, focusing on models involving light new particles, such as axions or hidden sectors. Opportunities from novel experimental concepts and proposal for new muon facilities are also discussed.