On the Spontaneous CP Breaking in the Higgs Sector of the Minimal Supersymmetric Standard Model

Abstract

We revise a recently proposed mechanism for spontaneous CP breaking at finite temperature in the Higgs sector of the Minimal Supersymmetric Standard Model, based on the contribution of squarks, charginos and neutralinos to the one-loop effective potential. We have included plasma effects for all bosons and added the contribution of neutral scalar and charged Higgses. While the former have little effect, the latter provides very strong extra constraints on the parameter space and change drastically the previous results. We find that CP can be spontaneously broken at the critical temperature of the electroweak phase transition without any fine-tuning in the parameter space.

9 pages, LATEX, 3 appended postscript figures, IEM-FT-76/93

References in corpus (4)

• On the electroweak phase transition in the Minimal Supersymmetric Standard Model
• Higgs sector CP violation in the Minimal Supersymmetric Model
• Spontaneous CP violation in Supersymmetric theories
• Spontaneous CP Violation in the Minimal Supersymmetric Standard Model at Finite Temperature

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