The thesis explores dark matter through various models, focusing on scalar and fermionic contributions to dark matter relic density. It highlights existing constraints on axion-like particles (ALPs) and employs theoretical frameworks to understand dark matter phenomenology in a U(1)X extension of the Standard Model. The study utilizes the SARAH package for computing mass matrices and interactions, while considering experimental results from direct detection experiments, such as XENON1T and LUX. The interactions are modeled with strategic benchmark points, acknowledging the constraints and parameters influential for dark matter analysis.
The total relic abundance of dark matter in our model derives from the combined contributions of scalar and fermion relic abundances, constrained by specific solutions.
We implemented our two-component dark matter model using the SARAH package to determine vertices and mass matrices crucial for calculating DM relic abundance.
Experimental data from XENON1T, LUX, and PandaX-II constraints direct detection cross-sections of dark matter scattering off nucleons, guiding our analysis.
Despite introducing new parameters in our model, it was determined that self-quartic coupling plays an insignificant role in dark matter phenomenology.
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