In the light of recent measurement of muon (g−2), we investigate the phenomenological implications of an axion-like particle (ALP) which only couples to the standard model charged leptons. We find that in a narrow mass range of ALP, it can alleviate the tension between the theoretical prediction and experimental observation of (g−2)μ once we consider all possible one and two-loop diagrams. In particular, ALP can either explain the muon (g−2) anomaly for 5GeV≲ma≲6GeV while satisfying the other experimental constraints, or be restricted by it.
@article{arxiv.2204.07920,
title = {Can leptophilic-ALP be a solution to the muon $(g-2)$ anomaly?},
author = {Sougata Ganguly and Biswarup Mukhopadhyaya and Sourov Roy},
journal= {arXiv preprint arXiv:2204.07920},
year = {2024}
}