Dynamical Breaking of CPT and Baryogenesis

Details Dynamical Breaking of CPT and Baryogenesis Dynamical Breaking of CPT and Baryogenesis

1999-01-14

arxiv.org/abs/hep-ph/9901303v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 1 figure invited talk at the Workshop on CPT and Lorentz Symmetry, Bloomington, Indiana, Nov. 6 - 8 1998, to be publ

Scientific paper

The asymmetry between matter and antimatter in the Universe indicates that there was a period in the very early Universe when the CPT symmetry was broken. The conservative interpretation is that the breaking was dynamical, induced by the distinguished direction of time stemming from the cosmological expansion. Here, I review the role which topological defect networks may play in baryogenesis and how this relates to dynamical CPT symmetry breaking. Particular attention is placed on defect-mediated electroweak baryogenesis. A recent suggestion of defect-mediated QCD scale baryogenesis is also mentioned.

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