A Note on Polonyi Problem

Abstract

We reinvestigate the cosmological Polonyi problem in the case where the Polonyi mass is $\mathcal{O}(10)\mathrm{TeV}$. Such a large supersymmetry breaking scale implies that the Polonyi field should be sequestered from the standard model sector. Since the Polonyi field does not have a coupling to the gauge multiplets at tree level, in order to obtain sufficiently high reheating temperature compatible with the standard big-bang nucleosynthesis the Polonyi mass well exceeds 100 - 1000 TeV, depending on the decay channels. Moreover, we find that the branching ratio of the Polonyi field into neutralinos is of order unity, and thus the resulting neutralino LSPs, if stable, overclose the Universe even for the case of the wino-like LSP. Our explicit computation given here exhibits a very serious cosmological difficulty for models where supersymmetry breaking is caused by the Polonyi-type field.

11 pages, 1 figure, references added

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• Ultra-cold WIMPs: relics of non-standard pre-BBN cosmologies
• Prospects of determination of reheating temperature after inflation by DECIGO
• The Moduli and Gravitino (non)-Problems in Models with Strongly Stabilized Moduli
• Note on moduli stabilization, supersymmetry breaking and axiverse
• Axionic Mirage Mediation
• Direct/indirect detection signatures of nonthermally produced dark matter
• Non-thermal WIMP baryogenesis
• Cosmology with a Heavy Polonyi Field
• Dark matter in the KL moduli stabilization scenario with SUSY breaking sector from $\mathcal{N}=1$ SQCD
• Inverted Hybrid Inflation as a solution to gravitino problems in Gravity Mediation