On the cosmological domain wall problem in supersymmetric models

Abstract

Many models for dynamical supersymmetry breaking have the domain wall solution of the Kovner-Shifman type and therefore contain the potential cosmological domain wall problem.We show that the degeneracy of the vacua is lifted in any model in which the cosmological constant is fine-tuned to zero through an explicit $Z_n^R$ symmetry breaking constant in the superpotential. In this respect, we do not have to add unnatural non-renormalizable terms which explicitly break the symmetry. We also discuss the conditions for the safe decay of the walls for several concrete examples.

10 pages, Latex, accepted for publication in Phys.Lett.B

Cited by in corpus (24)

• Domain Walls in Supersymmetric Yang-Mills Theories
• Topological Curvatons
• The exact WKB for cosmological particle production
• Baryon number violation, baryogenesis and defects with extra dimensions
• Enhanced baryon number violation due to cosmological defects with localized fermions along extra dimension
• Affleck-Dine baryogenesis in the local domain
• Brane necklaces and brane coils
• Generating the curvature perturbation with instant preheating
• Weak Scale Inflation and Unstable Domain Walls
• Electroweak baryogenesis mediated by locally supersymmetry-breaking defects
• Cosmological perturbations from inhomogeneous preheating and multi-field trapping
• Activated Sphalerons and Large Extra Dimensions
• Gravitational Waves as a Probe of the Gravitino Mass
• Elliptic Inflation: Generating the curvature perturbation without slow-roll
• Brane inflation without slow-roll
• Formation of cosmological brane defects
• Cosmological perturbations from an inhomogeneous phase transition
• The Exact WKB and the Landau-Zener transition for asymmetry in cosmological particle production
• Incidental brane defects
• Primordial black holes from monopoles connected by strings
• Remote Inflation: Hybrid-like inflation without hybrid-type potential
• The Exact WKB analysis for asymmetric scalar preheating
• Casimir force for cosmological domain walls
• Heavy Gravitino from Dynamical Generation of Right-Handed Neutrino Mass Scale, and Gravitational Waves