Spontaneous CP Violation in the Minimal Supersymmetric Standard Model at Finite Temperature

Details Spontaneous CP Violation in the Minimal Supersymmetric Standard Model at Finite Temperature Spontaneous CP Violation in the Minimal Supersymmetric Standard Model at Finite Temperature

1993-02-03

arxiv.org/abs/hep-ph/9302207v2

Phys.Lett.B306:67-72,1993

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, DFPD 93/TH/06 and UTS/DFT/93/1

Scientific paper

10.1016/0370-2693(93)91139-E

We show that in the Minimal Supersymmetric Standard Model one--loop effects at finite temperature may lead to a spontaneous breaking of CP invariance in the scalar sector. Requiring that the breaking takes place at the critical temperature for the electroweak phase transition, we find that the parameters space is compatible with a mass of the Higgs pseudoscalar in agreement with the present experimental lower bounds. Possible implications for baryogenesis are discussed.

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