Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-01-29
Physics
High Energy Physics
High Energy Physics - Phenomenology
14 pages LaTeX. Talk presented at SEWM'98, NORDITA, Copenhagen
Scientific paper
The MSSM has flat directions in its scalar potential, along which it is natural for Bose condensates of squarks to form in the early Universe. A baryon asymmetry can be induced in these condensates via Affleck-Dine baryogenesis. The condensates are unstable with respect to fragmentation to "B-balls", solitons made of squarks and carrying baryon number, which, if they survive thermalization, fill the Universe down to low temperatures, much lower than that of the electroweak phase transition, with interesting cosmological consequences. In particular, their decay implies a similar number density of baryons and dark matter neutralinos, in accordance with observations. Evasion of thermalization and the ability to account for the observed baryon asymmetry requires a very low reheating temperature, which, it is argued, is a natural feature of presently favoured D-term inflation models.
No associations
LandOfFree
B-ball Baryogenesis and D-term Inflation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with B-ball Baryogenesis and D-term Inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and B-ball Baryogenesis and D-term Inflation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-615732