Flux-Induced Baryon Asymmetry
نویسنده
چکیده
I propose that the primordial baryon asymmetry of the universe was induced by the presence of a non-vanishing antisymmetric field background Hμνρ across the three space dimensions. This background creates a dilute (B −L)-number density in the universe cancelling the contribution from baryons and leptons. This situation naturally appears if the U(1)B−L symmetry is gauged and the corresponding gauge boson gets a Stuckelberg mass by combining with an antisymmetric field Bμν . All these ingredients are present in D-brane models of particle physics. None of the Sakharov conditions are required.
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تاریخ انتشار 2006