CP Violation in the Higgs Sector and Phase Transition in the MSSM

Details CP Violation in the Higgs Sector and Phase Transition in the MSSM CP Violation in the Higgs Sector and Phase Transition in the MSSM

2002-11-15

arxiv.org/abs/hep-ph/0211238v1

Prog.Theor.Phys. 109 (2003) 415-432

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, 6 figures, LaTeX2e

Scientific paper

10.1143/PTP.109.415

We investigate the electroweak phase transition in the presence of a large CP violation in the squark sector of the MSSM. When the CP violation is large, scalar-pseudoscalar mixing of the Higgs bosons occurs and a large CP violation in the Higgs sector is induced. It, however, weakens first-order phase transition before the mixing reaches the maximal. Even when the CP violation in the squark sector is not so large that the phase transition is strongly first order, the phase difference between the broken and symmetric phase regions grows to O(1), which leads to successful baryogenesis, when the charged Higgs bosons is light.

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