Moduli-Induced Gravitino Problem

2006/02/28 by Motoi Endo, Koichi Hamaguchi, Fuminobu Takahashi · 8 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #astro-ph #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevlett.96.211301

published as Phys.Rev.Lett.96:211301,2006 · 5 pages, 1 figure. v2: minor changes, note added

arxiv created 2006/05/10 · openalex publication_date 2006/06/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We investigate the cosmological moduli problem by studying a modulus decay in detail and find that the branching ratio of the gravitino production is generically of O(0.01-1), which causes another cosmological disaster. Consequently, the cosmological moduli problem cannot be solved simply by making the modulus mass heavier than 100 TeV. We also illustrate our results by explicitly calculating the branching ratio into the gravitinos in the mixed modulus-anomaly model.

Citations

• Cosmological implications of dynamical supersymmetry breaking
• New BBN limits on physics beyond the standard model from 4He
• Supersymmetry and Supergravity
• de Sitter Vacua in String Theory

Cited by

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• Effect of a late decaying scalar on the neutralino relic density
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• Gravitino-overproduction problem in an inflationary universe
• The Polonyi problem and upper bound on inflation scale in supergravity
• Nonthermal production of dark matter from a late-decaying scalar field at an intermediate scale
• A note on Polonyi problem
• F-Term Hybrid Inflation, Metastable Cosmic Strings and Low Reheating in View of ACT