Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2001-03-20
Phys.Rev.D65:107301,2002
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, LaTeX file, no figures. Important improvements on the paper. Conclusions unchanged. References added
Scientific paper
10.1103/PhysRevD.65.107301
Baryogenesis in the models where the fundamental scale is as low as TeV in the context of large extra dimensions is a challenging problem. The requirement for the departure from thermal equilibrium necessarily ties any low scale baryogenesis with that of a successful inflationary model which automatically provides the out of equilibrium condition after the end of inflation. However, it is also noticeable that in these models the reheat temperature of the Universe is strongly constrained from the overproduction of Kaluza-Klein modes, which enforces a very low reheat temperature. In this paper we describe a possible scenario for baryogenesis which has a similar characteristics of an Affleck-Dine field. We notice that in order to have an adequate baryon to entropy ratio one requires to promote this Affleck-Dine field to reside in the bulk.
Mazumdar Anupam
Pérez--Lorenzana Abdel
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