Nonthermal production of baryon and dark matter

2005/10/19 by Daijiro Suematsu · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/j.astropartphys.2005.10.003

published as Astropart.Phys.24:511-519,2006 · 16 pages, to be published in Astroparticle Physics

arxiv created 2005/10/19 · openalex publication_date 2005/11/15 · arxiv updated 2011/05/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study nonthermal production of baryon and dark matter. If we extend the MSSM by introducing some singlet chiral superfields so as to enlarge the conserved global symmetry, the abundance of the baryon and the dark matter in the universe may be explained as the charge asymmetry of that symmetry. In such a case, the baryon energy density and the dark matter energy density in the present universe can be correlated each other and take the similar order values naturally.

Citations

• Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
• Measurement of Day and Night Neutrino Energy Spectra at SNO and Constraints on Neutrino Mixing Parameters
• μ-term as the origin of baryon and lepton number asymmetry
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Search for Electron Neutrino Appearance in a 250 km Long-Baseline Experiment
• On anomalous electroweak baryon-number non-conservation in the early universe

Cited by

• Dark world and baryon asymmetry from a common source
• Relic abundance of asymmetric Dark Matter