Open AccessConstraining sub-GeV dark matter with the Integral data
Author(s) -
Marco Cirelli,
Bradley J. Kavanagh,
N. Fornengo,
Elena Pinetti
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2156/1/012033
Subject(s) - physics , annihilation , dark matter , nuclear physics , photon , muon , positron , pion , electron , compton scattering , particle physics , light dark matter , antiproton , range (aeronautics) , scalar field dark matter , astrophysics , proton , dark energy , materials science , cosmology , quantum mechanics , composite material
The goal of this work is to constrain sub-GeV dark matter particles (1 MeV ≤ m DM ≤ 5 GeV) by looking at photons in the keV energy range and by including the inverse Compton scattering contribution to the total flux. In particular, the electrons and positrons produced by dark matter particles can scatter the low-energy photons in the Milky Way up to the X-ray energies. These X rays are probed by the I ntegral data, which we utilised to constrain the dark matter annihilation cross-section. The relevant annihilation channels are electron, muon and pion. As a result, we derived competitive bounds for dark matter particles with a mass between 150 MeV and 1.5 GeV.