Baryogenesis from dark matter

Abstract

We consider the possibility that some primordial fields decay purely into the dark sector creating asymmetric dark matter. This asymmetry is subsequently transmuted into leptons and baryons. Within this paradigm we compute the amount of asymmetric dark matter created from the out of equilibrium decays of the primordial fields with CP violating Yukawa couplings. The dark matter asymmetry is then transferred to the visible sector by the asymmetry transfer equation and generates an excess of B À L. Baryogenesis occurs via sphaleron processes which conserve B À L but violate B þ L. A mechanism for the annihilation of the symmetric component of dark matter is also discussed. The model leads to multicomponent dark matter consisting of both bosonic and fermionic components.

5D World-Universe Model. Multicomponent Dark Matter

“…A number of non-traditional models explaining the supermassive dark objects observed in galaxies and galaxy clusters, formed by self-gravitating non-baryonic matter composed of fermions and bosons, are widely discussed in literature [2]- [10].…”

“…DMP includes three Majorana fermions (Neutralinos, WIMPs, and Sterile neutrinos) with spin of 1/2 and two spin-0 bosons (named DIRACs and ELOPs in the World-Universe Model), as detailed below. Multicomponent dark matter models consisting of both bosonic and fermionic components were analyzed in literature (for example, see [2]- [10] and references therein).…”

Theories relating baryon asymmetry and dark matter

“…The asymmetry in the dark sector can also be generated via a different baryogenesis mechanism, see [62] for an example where a heavy particle decays to the dark sector, creating an asymmetry there that is then transferred to the visible sector. For the opposite case, see [63] or aidnogenesis [64], for instance where the asymmetry is transferred through sphalerons from the SM to the dark sector.…”

Overview of Hypersphere World-Universe Model

“…Note that one of outstanding puzzles in particle physics and cosmology relates to so-called cosmic coincidence: the ratio of dark matter density in the World to baryonic matter density in the Medium of the World ≅ 5 [86] [87].…”