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On the cosmological domain wall problem in supersymmetric models

Tomohiro Matsuda
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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.

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Tomohiro Matsuda. 1998-06-29. On the cosmological domain wall problem in supersymmetric models. https://doi.org/10.1016/s0370-2693(98)00861-2

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