Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-06-09
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 1 figure, to appear in ASP conference Series (SnowPAC 2009 Proceedings)
Scientific paper
Gauge-mediated models of supersymmetry-breaking imply that stable Q-balls can form in the early universe and act as dark matter. All stable Q-balls in the MSSM are associated with one or more flat directions. We show that while Q-balls are produced from the fragmentation of a flat direction condensate, they quickly evolve to a ground state that is slightly away from this flat direction. In this process a (B+L)-ball can become electrically charged. This is a novel form of charge acquisition with important ramifications for the experimental search for Q-ball dark matter.
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