B-ball dark matter and baryogenesis

Details B-ball dark matter and baryogenesis B-ball dark matter and baryogenesis

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..555..359b&link_type=abstract

Cosmology and Particle Physics: CAPP 2000. AIP Conference Proceedings, Volume 555, pp. 359-362 (2001).

Physics

Dark Matter, Origin And Formation Of The Universe

Scientific paper

It has been recently suggested that stable, supersymmetric B-balls formed in the early universe could not only be the dark matter at the present epoch, but also be responsible for baryogenesis by their partial evaporation at high temperatures. We reinvestigate the efficiency of B-ball baryogenesis and find it to be limited by the diffusion of baryon number away from the B-balls. Successful baryogenesis may only occur for B-balls with charges Q~1020-5×1023, which is close to the observational lower limits on the Q of a significant B-balls dark matter component. We also present a cosmological constraint on the abundances of larger instable B-balls in the early universe. .

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