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Updated: Jul 28, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Electroweak phase transition in the minimal supersymmetric standard model: 4-dimensional lattice simulations
1Institute for Theoretical Physics, Eotvos University, H-1117, Pazmany P. 1A, Budapest, Hungary.
Abstract:
Lattice results show no standard model (SM) electroweak phase transition (EWPT) for Higgs masses approximately 72 GeV, which is below the present experimental limit. Perturbation theory and 3-dimensional simulations indicate an EWPT in the minimal supersymmetric SM (MSSM) that is strong enough for baryogenesis up to m(h) approximately 105 GeV. In this Letter we present the results of our large scale 4-dimensional MSSM EWPT simulations. We carried out infinite volume and continuum limits and found a transition whose strength agrees well with perturbation theory, allowing MSSM electroweak baryogenesis at least up to m(h) = 103+/-4 GeV. We determined the properties of the bubble wall.
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