Electroweak Phase Transition in the U(1)' MSSM

Abstract

In this work, we have investigated the nature of the electroweak phase transition in the U(1) extended minimal supersymmetric standard model without introducing any exotic fields. The effective potential has been estimated exactly at finite temperature taking into account the whole particle spectrum. For reasonable values of the lightest Higgs and neutralino, we found that the electroweak phase transition could be strongly first order due to: (1) the interactions of the singlet with the doublets in the effective potential, and (2) the evolution of the wrong vacuum that delays the transition.

substantial changes, references added, 18 pages, 4 figures

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• Light Dark Matter, Light Higgs and the Electroweak Phase Transition
• Gravitational Waves from Phase Transitions in Models with Charged Singlets
• Singlino-driven Electroweak Baryogenesis in the Next-to-MSSM
• The right-handed sneutrino as thermal dark matter in U(1) extensions of the MSSM
• Dark Radiative Inverse Seesaw Mechanism
• A New Approach to Electroweak Symmetry Non-Restoration
• Higgs Mediated EDMs in the Next-to-MSSM: An Application to Electroweak Baryogenesis
• Effects of Two Inert Scalar Doublets on Higgs Interactions and Electroweak Phase Transition
• Probing the Cosmological Constant and Phase Transitions with Dark Matter
• Scalar Sector Phenomenology of Three-Loop Radiative Neutrino Mass Models
• First-order electroweak phase transition powered by additional F-term loop effects in an extended supersymmetric Higgs sector
• $Z^{\prime }$-ino-driven Electroweak Baryogenesis in the UMSSM
• Impact of lepton flavour universality violation on CP violation sensitivity of long baseline neutrino oscillation experiments
• Neutrino masses, dark matter and baryon asymmetry of the Universe