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Title: On baryogenesis from dark matter annihilation

We study in detail the conditions to generate the baryon asymmetry of the universe from the annihilation of dark matter. This scenario requires a low energy mechanism for thermal baryogenesis, hence we first discuss some of these mechanisms together with the specific constraints due to the connection with the dark matter sector. Then we show that, contrary to what stated in previous studies, it is possible to generate the cosmological asymmetry without adding a light sterile dark sector, both in models with violation and with conservation of B−L. In addition, one of the models we propose yields some connection to neutrino masses.
Authors:
 [1] ; ;  [2] ;  [3] ;  [4]
  1. ICTP South American Institute for Fundamental Research and Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, SP 01140-070 (Brazil)
  2. Bethe Center for Theoretical Physics and Physikalisches Institut, Universität Bonn, Nußallee 12, D-53115 Bonn (Germany)
  3. Centro de Física Teórica de Partículas CFTP, Instituto Superior Técnico, Technical University of Lisbon, 1049-001 Lisbon (Portugal)
  4. Instituto de Física corpuscular (IFIC), Universidad de Valencia-CSIC Edificio de Institutos de Paterna, Apt. 22085, 46071 Valencia (Spain)
Publication Date:
OSTI Identifier:
22282616
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2013; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ANNIHILATION; ASYMMETRY; BARYONS; LIMITING VALUES; NEUTRINOS; NONLUMINOUS MATTER; REST MASS; UNIVERSE