Year: 2025
Type: article
Abstract: In the indirect search for dark matter, recent observations of gamma-ray, X-ray and radio signals have imposed strong constraints on annihilating particle dark matter. In this article, we explore the near-infrared data from the region of the inner Galactic Center to adopt an indirect method for constraining dark matter mass and annihilation cross-section. By examining the dark matter density spike model with two different benchmark values of the spike index, we rule out a large parameter space of the annihilation cross section against dark matter mass for some of the preferred annihilation channels ( $$\mu ^{\pm }$$ , $$e^{\pm }$$ , $$\tau ^{\pm }$$ , $$b\bar{b}$$ , $$W^{\pm }$$ ).
Source: Discover Space.
Authors: Chak Man Lee, Man Ho Chan
Institution: Education University of Hong Kong
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,520
OpenAlex ID: W4416765109