BIREFRINGENT ELECTROWEAK DEFECTS
نویسندگان
چکیده
منابع مشابه
Electroweak Defects ∗
A brief, non-technical review is given of certain defect-like configurations in the electroweak standard model, which may have played an important role in the physics of the early universe. The history of the early universe is, for the most part, rather uneventful: the universe expands and cools down. There are, however, brief moments when something interesting does happen. These are, in revers...
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We propose a criterion to classify hybrid defects occuring in field theoretic models such as the standard electroweak model. This criterion leads us to consider the minimal extension of the electroweak model in which electroweak magnetic monopoles and Z-strings are topological. We briefly discuss the cosmology of such defects. The standard electroweak model is based on an SU(2)L × U(1)Y symmetr...
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Embedded defects proposed long ago (Z–vortices and Nambu monopoles) have been successfully searched for in 3D equilibrium lattice studies within the standard model near the electroweak phase transition and the crossover (which follows it for realistic Higgs mass). Gauge independent lattice–vortex operators are proposed. Vortex condensation (percolation) is found to characterize the high–tempera...
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We consider the scenario of electroweak baryogenesis mediated by cosmological defect in models of supersymmetry breaking. When the effective electroweak breaking scale is raised in the defect configuration, the mechanism of electroweak baryogenesis works at a higher energy scale. The baryon charge produced by the mechanism is captured in the defect. It is protected from sphalerons and then rele...
متن کاملEmbedded Topological Defects in Hot Electroweak Theory: a Lattice Study
We study the properties of Nambu monopoles and Z–vortices in the 3D lattice SU(2) Higgs theory which represents the Standard Model at high temperature. We show that the densities of the Nambu monopoles and the Z–vortices are O(1) in the symmetric phase and generically small in the Higgs phase. Near to the critical Higgs mass and in the vicinity of the phase transition the densities are no more ...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2002
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x02010583