Topological Defects in the Left-Right Symmetric Model and their Relevance to Cosmology

Details Topological Defects in the Left-Right Symmetric Model and their Relevance to Cosmology Topological Defects in the Left-Right Symmetric Model and their Relevance to Cosmology

1998-12-17

arxiv.org/abs/hep-ph/9812406v1

Phys.Rev. D59 (1999) 103508

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pages, LaTex file with 6 postscript figures

Scientific paper

10.1103/PhysRevD.59.103508

It is shown that the minimal left-right symmetric model admits cosmic string and domain wall solutions. The cosmic strings arise when the SU(2)_R is broken and can either be destabilized at the electroweak scale or remain stable through the subsequent breakdown to U(1)_{EM}. The strings carry zero modes of the neutrino fields. Two distinct domain wall configurations exist above the electroweak phase transition and disappear after that. Thier destablization provides new sources of non-equilibrium effects below the electroweak scale which is relevant to baryogenesis.

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