Status and Perspectives on Axion Searches

TL;DR

This paper reviews the current experimental efforts and future prospects in axion and ALP searches, emphasizing cavity haloscopes, helioscopes, and astrophysical probes in the context of dark matter and fundamental physics.

Contribution

It provides a comprehensive overview of recent advancements, ongoing experiments, and future directions in axion detection methods and astrophysical investigations.

Findings

Significant progress in cavity haloscope sensitivity.

Ongoing development of helioscope experiments.

Emerging astrophysical constraints on axion-like particles.

Abstract

The search for axions and axion-like particles (ALPs) remains a major endeavor in modern physics investigation. Axions play essential roles in the quest to understand dark matter, the strong CP problem, and various astrophysical phenomena. This paper provides a very brief overview of the current status of experimental efforts, highlighting significant advancements, ongoing projects, and future opportunities. Particular attention is given to cavity haloscopes, helioscopes, and laboratory-based light-shining-through-wall experiments, as well as astrophysical probes. Some future perspectives are also discussed.