Physics – High Energy Physics
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1006...29n&link_type=abstract
HIGH ENERGY PHYSICS AND APPLICATIONS: Proceedings of the UAE-CERN Workshop. AIP Conference Proceedings, Volume 1006, pp. 29-34
Physics
High Energy Physics
Models Beyond The Standard Model, Particle-Theory And Field-Theory Models Of The Early Universe, Global Symmetries
Scientific paper
We propose a unified scenario of two puzzles in particle physics and cosmology, namely, the dark matter and the origin of the baryon asymmetry of the universe in a simple extension of MSSM. Our model uses a gauge singlet chiral superfield field N, where the out-of equilibrium decay of the fermionic partner of N mediated by the exchange of a colored TeV scale scalar field generates adequate baryon asymmetry for MN~100 GeV. The scalar partner of N is naturally the lightest SUSY particle as it has no gauge interactions and plays the role of dark matter. The model is experimentally testable in (i) neutron-antineutron oscillations with a transition time estimated to be around 1010 sec, (ii) discovery of colored particles X at LHC with mass of order TeV, and (iii) direct dark matter detection with a predicted cross section in the observable range in next generation dark matter search experiments.
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