Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-01-21
Physics
High Energy Physics
High Energy Physics - Phenomenology
11 pages, 3 figures, talk given at COSMO-01 Workshop, Rovaniemi, Finland, August 30 - September 4, 2001
Scientific paper
We consider the Affleck-Dine baryogenesis comprehensively in the minimal supersymmetric standard model with gauge-mediated supersymmetry breaking. Considering the high temperature effects, we see that the Affleck-Dine field is naturally deformed into the form of the Q ball. In the natural scenario where the initial amplitude of the field and the A-terms are both determined by the nonrenormalizable superpotential, we obtain a narrow allowed region in the parameter space in order to explain the baryon number and the dark matter of the universe simultaneously. Therefore, the Affleck-Dine baryogenesis is successful, although difficult.
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