Document Type : Original Article
Authors
Shahid Beheshti University
Abstract
Understanding the nature of dark matter has been one of the most serious challenges in fundamental physics in recent decades. The Inert Higgs Doublet Model is one of the simplest extensions of the Standard Model of particle physics that provides new particles, the lightest of which can be considered a dark matter candidate particle. Assuming the existence of such a particle, its annihilation processes in the accumulation centers can lead to the production of excess Standard Model particles in different astrophysical regions than expected. Due to the non-discovery of dark matter particles, bounds on the annihilation cross sections versus masses of the dark matter particle are derived by various search experiments. Comparing these bounds with the Inert Higgs Doublet Model theoretical predictions can be used for assessing the compatibility of the model with astrophysical observation of signals for excess Standard Model particles.