Probing the Inert Doublet Dark Matter with Stellar-Mass Black Hole Mini-Spikes

Fuente: arXiv
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Auteur principal: Sahu, Rameswar
Format: Preprint
Publié: 2026
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author Sahu, Rameswar
author_facet Sahu, Rameswar
contents The nature of dark matter remains a central unresolved problem in contemporary physics, motivating the exploration of well-defined extensions of the Standard Model. Among these, the Inert Doublet Model provides a minimal and theoretically consistent framework accommodating a viable weakly interacting massive particle dark matter candidate. In this work, we investigate the IDM parameter space through an analysis of FermiLAT observations of dark matter mini-spikes surrounding stellar-mass black holes. Owing to the strong gravitational compression of dark matter in the vicinity of these systems, the resulting annihilation signal can be significantly enhanced, rendering such environments exceptionally sensitive probes of dark matter interactions. We find that substantial regions of the IDM parameter space, particularly in the high-mass regime, are subject to stringent constraints extending into the multi-TeV range. These results underscore the increasingly important role of indirect detection in probing particle dark matter scenarios beyond the reach of current collider and direct detection experiments.
format Preprint
id arxiv_https___arxiv_org_abs_2605_07616
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Probing the Inert Doublet Dark Matter with Stellar-Mass Black Hole Mini-Spikes
Sahu, Rameswar
High Energy Physics - Phenomenology
High Energy Astrophysical Phenomena
The nature of dark matter remains a central unresolved problem in contemporary physics, motivating the exploration of well-defined extensions of the Standard Model. Among these, the Inert Doublet Model provides a minimal and theoretically consistent framework accommodating a viable weakly interacting massive particle dark matter candidate. In this work, we investigate the IDM parameter space through an analysis of FermiLAT observations of dark matter mini-spikes surrounding stellar-mass black holes. Owing to the strong gravitational compression of dark matter in the vicinity of these systems, the resulting annihilation signal can be significantly enhanced, rendering such environments exceptionally sensitive probes of dark matter interactions. We find that substantial regions of the IDM parameter space, particularly in the high-mass regime, are subject to stringent constraints extending into the multi-TeV range. These results underscore the increasingly important role of indirect detection in probing particle dark matter scenarios beyond the reach of current collider and direct detection experiments.
title Probing the Inert Doublet Dark Matter with Stellar-Mass Black Hole Mini-Spikes
topic High Energy Physics - Phenomenology
High Energy Astrophysical Phenomena
url https://arxiv.org/abs/2605.07616