Opening the window for electroweak baryogenesis

1996/03/26 by M. Carena, M. Quirós, M. Quiros +2 · 20 citations
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Particle physics theoretical and experimental studies #Statistical Mechanics and Entropy #hep-ph

paper · pdf · doi:10.1016/0370-2693(96)00475-3

published as Phys.Lett.B380:81-91,1996 · 16 pages, LaTeX + 4 figures, psfig. (uuencoded)

arxiv created 1996/03/26 · openalex publication_date 1996/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

We perform an analysis of the behaviour of the electroweak phase transition in the Minimal Supersymmetric Standard Model, in the presence of light stops. We show that, in previously unexplored regions of parameter space, the order parameter v(T_c)/T_c can become significantly larger than one, for values of the Higgs and supersymmetric particle masses consistent with the present experimental bounds. This implies that baryon number can be efficiently generated at the electroweak phase transition. As a by-product of this study, we present an analysis of the problem of colour breaking minima at zero and finite temperature, and we use it to investigate the region of parameter space preferred by the best fit to the present precision electroweak measurement data, in which the left-handed stops are much heavier than the right-handed ones.

Citations

• Electroweak Baryogenesis and Standard Model CP Violation
• Low-energy supergravity: False vacua and vacuous predictions
• Standard Model CP-violation and Baryon asymmetry

Cited by

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• Analyzing the scalar top coannihilation region at the International Linear Collider
• SUSY and the electroweak phase transition
• Electric dipole moment constraints on minimal electroweak baryogenesis
• New Source for Electroweak Baryogenesis in the Minimal Supersymmetric Standard Model
• MSSM Higgs sector CP violation at photon colliders: revisited
• Supersymmetric Baryogenesis and Flavor Physics
• Dark matter, light top squarks, and electroweak baryogenesis
• Supersymmetric origin of matter
• Electroweak phase transition in two Higgs doublet models
• Electroweak phase transition in the minimal supersymmetric standard model with four generations
• Di-Higgs Production and Trilinear Higgs Self-Coupling in the scNMSSM: Qualitative Implications for the Electroweak Phase Transition at large λ and Low tan\beta
• Velocity of electroweak bubble walls
• Collider searches and cosmology in the MSSM with heavy scalars
• Top and bottom squark searches in run II of the Fermilab Tevatron
• Stop decay into right-handed sneutrino LSP at hadron colliders
• Gravitational waves from electroweak phase transitions
• Baryogenesis at Low Reheating Temperatures
• RECENT PROGRESS IN BARYOGENESIS
• Gravitational waves from the electroweak phase transition