Spontaneous CP Violation at Finite Temperature in the MSSM

Details Spontaneous CP Violation at Finite Temperature in the MSSM Spontaneous CP Violation at Finite Temperature in the MSSM

1998-02-09

arxiv.org/abs/hep-ph/9802276v1

Prog.Theor.Phys. 99 (1998) 1045-1068

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages, LaTeX, 16 eps figures (epsf.sty is needed)

Scientific paper

10.1143/PTP.99.1045

By studying the effective potential of the MSSM at finite temperature, we find that CP can be spontaneously broken in the intermediate region between the symmetric and broken phases separated by the bubble wall created at the phase transition. This type of CP violation is necessary to have a bubble wall profile connecting CP conserving vacua, while violating CP halfway and generating sufficient baryon number without contradiction to the experimantal bounds on CP violations. Several conditions on the parameters in the MSSM are found for CP to be broken in this manner.

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