Dissipating Cosmic Vortons and Baryogenesis

Details Dissipating Cosmic Vortons and Baryogenesis Dissipating Cosmic Vortons and Baryogenesis

1996-11-29

arxiv.org/abs/hep-ph/9612208v1

Phys.Lett. B393 (1997) 46-50

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, TeX

Scientific paper

10.1016/S0370-2693(96)01612-7

Grand unified theories can admit cosmic strings with fermion zero modes which result in the string carrying a current and the formation of stable remnants, vortons. We consider theories in which the zero modes do not survive a subsequent phase transition, for example the electroweak transition, resulting in vorton dissipation. The dissipating vortons can create a baryon asymmetry. We calculate the asymmetry produced, and show that it is maximised if the vortons decay just before they dominate the energy density of the Universe. We further bound the asymmetry produced by the late decay of any relic particle.

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