Cosmic Strings and Electroweak Baryogenesis

Abstract

The electroweak symmetry is unbroken in the core of cosmic strings originating from a symmetry breaking at an energy higher than the electroweak scale ${\eta }_{EW}$. The dynamics of such strings may generate a baryon asymmetry below the electroweak symmetry breaking scale. This mechanism for electroweak baryogenesis is most efficient if the scale of string formation is only slightly higher than ${\eta }_{EW}$ \eg \ in theories of dynamical symmetry breaking) and if the strings are superconducting. The mechanism is also effective if the electroweak phase transition is second order.

BROWN-HET-935 (February 1994), 17 pages, 1 figure (available as postscript file from the authors), uses phyzzx

References in corpus (7)

• Progress in Electroweak Baryogenesis
• Towards the Theory of Cosmological Phase Transitions
• Detailed Stability Analysis of Electroweak Strings
• Strong Sphalerons and Electroweak Baryogenesis
• Electroweak Baryogenesis with Electroweak Strings
• Superconducting Cosmc Strings and Primordial Magnetic Fields
• Cosmic Strings at the Electroweak Phase Transition

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• Particle Physics Models, Topological Defects and Electroweak Baryogenesis
• Electroweak baryogenesis mediated by locally supersymmetry-breaking defects
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• Microphysics of SO(10) Cosmic Strings
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• Topological Defects in the Left-Right Symmetric Model and their Relevance to Cosmology
• Topology in the Little Higgs Models
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• Effect of pre-existing baryon inhomogeneities on the dynamics of quark-hadron transition
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• Cosmic Strings Stabilized by Fermion Fluctuations
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