On the Cosmological Domain Wall Problem for the Minimally Extended Supersymmetric Standard Model

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dc.creatorAbel, S. A.
dc.creatorSarkar, S.
dc.creatorWhite, P. L.
dc.date1995-06-19
dc.date.accessioned2026-07-07T10:35:10Z
dc.date.available2026-07-07T10:35:10Z
dc.descriptionWe study the cosmology of the Supersymmetric Standard Model augmented by a gauge singlet to solve the $μ$-problem and describe the evolution of the domain walls which are created during electroweak symmetry breaking due to the discrete $Z_{3}$ symmetry in this model. The usual assumption, that non-renormalizable terms induced by gravity (which explicitly break this symmetry) may cause the walls to collapse on a cosmologically safe timescale, is reconsidered. Such terms are constrained by considerations of primordial nucleosynthesis, and also by the fact that by not respecting the $Z_{3}$ symmetry they induce divergences which destabilise the hierarchy and reintroduce the $μ$--problem. We find that, even when the Kähler potential is `non-minimal' (i.e. when the hidden sector couples directly to the visible) the model is either ruled out cosmologically or suffers from a naturalness problem.
dc.description17 pages, plain LaTeX, figures as uu file
dc.identifierhttps://arxiv.org/abs/hep-ph/9506359
dc.identifierhttp://arxiv.org/abs/hep-ph/9506359
dc.identifierNucl.Phys.B454:663-684,1995
dc.identifierdoi:10.1016/0550-3213(95)00483-9
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179672
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleOn the Cosmological Domain Wall Problem for the Minimally Extended Supersymmetric Standard Model
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