SUSY and the electroweak phase transition

Glennys R. Farrar, Marta Losada

Research output: Contribution to journalArticle

Abstract

We analyze the effective three-dimensional theory previously constructed for the MSSM and multi-Higgs models to determine the regions of parameter space in which the electroweak phase transition is sufficiently strong for a B + L asymmetry to survive in the low-temperature phase. We find that the inclusion of all supersymmetric scalars and all one-loop corrections has the effect of enhancing the strength of the phase transition. Without a light stop or extension of the MSSM the phase transition is sufficiently first order only if the lightest Higgs mass Mh ≲ 70 GeV and tan β ≲ 1.75.

Original languageEnglish (US)
Pages (from-to)60-65
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume406
Issue number1-2
StatePublished - Jul 31 1997

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SUSY and the electroweak phase transition. / Farrar, Glennys R.; Losada, Marta.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 406, No. 1-2, 31.07.1997, p. 60-65.

Research output: Contribution to journalArticle

Farrar, Glennys R. ; Losada, Marta. / SUSY and the electroweak phase transition. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1997 ; Vol. 406, No. 1-2. pp. 60-65.
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