Microphysics of SO(10) Cosmic Strings

Abstract

We uncover a rich microphysical structure for SO(10) cosmic strings. For the abelian string the electroweak symmetry is restored around it in a region depending on the electroweak scale. A rich structure of nonabelian strings is found. Some of these also restore the electroweak symmetry. We investigate the zero mode structure of our strings. Whilst there are right handed neutrino zero modes for the abelian string, they do not survive the electroweak phase transition. In general the nonabelian strings do not have fermion zero modes. We consider the generalisation of our results to other theories and consider cosmological consequences of them.

34 pages, LATEX. Replaced version is restructured, and has small correction to fermion zero mode analysis. To be published in Physical Review D

References in corpus (2)

• Cosmic Vortons and Particle Physics Constraints
• Cosmic Electroweak Strings

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• Topological Defects and CMB anisotropies : Are the predictions reliable ?
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• Topological Defects in the Left-Right Symmetric Model and their Relevance to Cosmology
• Cosmic D-Strings and Vortons in Supergravity
• Hard component of ultra-high energy cosmic rays and vortons
• Destruction of Fermion Zero Modes on Cosmic Strings
• Stability of string defects in models of non-Abelian symmetry breaking
• Dark Monopoles in Grand Unified Theories