Charge Asymmetry in Brane World

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  • 1 March 2002
Abstract
In theories with an infinite extra dimension, free particles localized on the brane can leak into the extra space. We argue that due to color confinement only electrons, and not protons, are able to escape. Thus, this process generates an electric charge asymmetry on brane matter densities. We use the current bounds on electron disappearance and Big Bang Nucleosynthesis to constrain the parameter space of these models. Although the effect is generically small, it could be particularly enhanced on large densities as in astrophysical objects, as massive stars. We suggest the possibility that such accumulation of charge may be linked, upon supernova collapse, to the formation of a charged Black Hole and the generation of Gamma-Ray Bursts.

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