Affiliation:
1. Departamento de Física, Facultad de Ciencia, Universidad de Santiago de Chile (USACH), Chile
Abstract
We study the possibility to describe dark matter in a model of the universe with two-scale factors and a nonstandard Poisson bracket structure characterized by the deformation parameter [Formula: see text]. The dark matter evolution is analyzed in the early stages of the universe, and its relic density is obtained via the Freeze-In and Freeze-Out mechanism. We show that by fixing [Formula: see text] and the initial ratio of energy densities present in the different sectors of the universe, the space of thermal average annihilation cross-sections and dark matter masses compatible with the standard cosmology prior to Big Bang Nucleosynthesis (BBN), is enlarged. This feature of the model is compatible with nonstandard cosmology.
Funder
Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Santiago de Chile
Publisher
World Scientific Pub Co Pte Ltd
Subject
Space and Planetary Science,Astronomy and Astrophysics,Mathematical Physics
Cited by
1 articles.
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