Electroweak Phase Transition and Baryogenesis in the nMSSM

Abstract

We analyze the nMSSM with CP violation in the singlet sector. We study the static and dynamical properties of the electroweak phase transition. We conclude that electroweak baryogenesis in this model is generic in the sense that if the present limits on the mass spectrum are applied, no severe additional tuning is required to obtain a strong first-order phase transition and to generate a sufficient baryon asymmetry. For this we determine the shape of the nucleating bubbles, including the profiles of CP-violating phases. The baryon asymmetry is calculated using the advanced transport theory to first and second order in gradient expansion presented recently. Still, first and second generation sfermions must be heavy to avoid large electric dipole moments.

36 pages, 10 figures; minor changes, published version

References in corpus (3)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Yukawa and Tri-scalar Processes in Electroweak Baryogenesis
• Numerical Approach to Multi Dimensional Phase Transitions

Cited by in corpus (19)

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• The Baryogenesis Window in the MSSM
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• Detectability of Gravitational Waves from Phase Transitions
• Four Generations, the Electroweak Phase Transition, and Supersymmetry
• Electroweak phase transition, critical bubbles and sphaleron decoupling condition in the MSSM
• The Effective Theory of the Light Stop Scenario
• Phenomenology of the nMSSM from colliders to cosmology
• Numerical Approach to Multi Dimensional Phase Transitions
• Theoretical upper bound on the mass of the LSP in the MNSSM
• Bubbling the False Vacuum Away
• Precision measurements, dark matter direct detection and LHC Higgs searches in a constrained NMSSM
• A T-odd observable sensitive to CP violating phases in squark decay
• First-order restoration of SU(Nf) x SU(Nf) chiral symmetry with large Nf and Electroweak phase transition
• Hidden Sector Baryogenesis
• Electroweak phase transition in MSSM with $U(1{)}^{\prime }$ in explicit CP violation scenario
• CP violation in the secluded U(1)'-extended MSSM
• Baryogenesis in Brans-Dicke theory