Constraining supersymmetry from the satellite experiments

2007/08/31 by Xiao-Jun Bi
Physics and Astronomy · #Annihilation #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Egret #Galaxy #Gamma ray #Milky Way #Neutralino #Particle physics #Physics #Satellite #Supersymmetry #astro-ph #hep-ph

paper · pdf · doi:10.1103/physrevd.76.123511

published as Phys.Rev.D76:123511,2007 · 19 pages, 5 gigures; references added, more discussions added

arxiv created 2007/12/10 · openalex publication_date 2007/12/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In this paper I study the detectability of \ensuremathγ rays from dark matter annihilation in the subhalos of the Milky Way by the satellite-based experiments EGRET and GLAST. I work in the frame of supersymmetric extension of the standard model and assume the lightest neutralino being the dark matter particles. Based on the N-body simulation of the evolution of dark matter subhalos I first calculate the average intensity distribution of this new class of \ensuremathγ-ray sources by neutralino annihilation. It is possible to detect these \ensuremathγ-ray sources by EGRET and GLAST. Conversely, if these sources are not detected the nature of the dark matter particles will be constrained by these experiments, depending, however, on the uncertainties of the subhalo profile.

Citations

• Gamma rays from the neutralino dark matter annihilations in the Milky Way substructures
• Model independent approach to focus point supersymmetry: from dark matter to collider searches
• Structure of Dark Matter Halos from Hierarchical Clustering
• Dark Halo Cusp: Asymptotic Convergence
• Dark Matter Substructure within Galactic Halos
• Direct, indirect and collider detection of neutralino dark matter in SUSY models with non-universal Higgs masses
• The subhalo populations of ΛCDM dark haloes
• Requirements on collider data to match the precision of WMAP on supersymmetric dark matter
• Dark-matter spike at the galactic center?
• The Phase‐Space Density Profiles of Cold Dark Matter Halos
• Particle dark matter: evidence, candidates and constraints
• Velocity and spatial biases in cold dark matter subhalo distributions
• Nonthermal production of dark matter from a late-decaying scalar field at an intermediate scale
• Halo Substructure and the Power Spectrum