Z Condensation and Standard Model Baryogenesis

Details Z Condensation and Standard Model Baryogenesis Z Condensation and Standard Model Baryogenesis

1994-06-09

arxiv.org/abs/hep-ph/9406270v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, PUPT-94-1456. Revised version 6/10/94 (with minor modifications to the Figures)

Scientific paper

The standard model satisfies Sakharov's conditions for baryogenesis but the CP violation in the KM matrix appears too small to account for the observed asymmetry. In this letter we explore a mechanism through which CP violation can be greatly amplified. First CP is {\it spontaneously} broken through dynamical effects on bubble walls, and the two CP conjugate phases grow through phase ordering. Direct competition between macroscopic regions of both phases then amplifies the microscopic CP violation to a point where one of the two phases predominates. This Letter is devoted to a demonstration that spontaneous CP violation may indeed occur on propagating bubble walls via the formation of a condensate of the longitudinal $Z$ boson.

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