Probing ALP-portal Fermionic Dark Matter at the $e^+e^-$ Colliders
Abstract
Axion-like particles (ALPs) are promising candidates for mediating interactions between a dark sector and the Standard Model (SM). In this work, considering the effective interactions of ALPs with the SM gauge bosons and a fermion dark matter (DM), we explore the DM relic satisfied parameter space and assess its testability through indirect searches. The potential of probing such ALP-portal fermionic DM at electron-positron colliders is investigated with the mono-photon + missing energy final states. We show that a spectacular distinction between the signal and SM background is possible via missing energy variable, the seed of which lies in the ALP-photon interaction, which also governs the relic density of DM. We further discuss the sensitivity of ALP-photon coupling using the analysis at the future electron-positron collider specifications.
Cite
@article{arxiv.2505.00478,
title = {Probing ALP-portal Fermionic Dark Matter at the $e^+e^-$ Colliders},
author = {Subhaditya Bhattacharya and Sahabub Jahedi and Soumen Kumar Manna and Arunansu Sil},
journal= {arXiv preprint arXiv:2505.00478},
year = {2025}
}
Comments
18 pages, 7 figures, 1 table