Isocurvature constraints on gravitationally produced superheavy dark matter

2004/11/16 by Daniel J. H. Chung, Edward W. Kolb, Antonio Riotto +1 · 2 citations
Physics and Astronomy · #Anisotropy #Astrophysics #Cold dark matter #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Galaxies: Formation, Evolution, Phenomena #Gravitino #Hot dark matter #Inflation (cosmology) #Light dark matter #Particle physics #Physics #Quantum mechanics #Scalar field dark matter #Supergravity #Supersymmetry #Theoretical physics #astro-ph #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.72.023511

published as Phys.Rev.D72:023511,2005 · 29 pages, 2 figures

arxiv created 2004/11/16 · openalex publication_date 2005/07/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We show that the isocurvature perturbations imply that the gravitationally produced superheavy dark matter must have masses larger than a few times the Hubble expansion rate at the end of inflation. This together with the bound on tensor to scalar contribution to the CMB induces a lower bound on the reheating temperature for superheavy dark matter to be about 10⁷ GeV. Hence, if the superheavy dark-matter scenario is embedded in supergravity models with gravity mediated supersymmetry breaking, the gravitino bound will squeeze this scenario. Furthermore, the CMB constraint strengthens the statement that a gravitationally produced superheavy dark-matter scenario prefers a relatively large tensor mode amplitude if the reheating temperature must be less than 10⁹ GeV.

Citations

• Cosmic Microwave Background Anisotropies with Mixed Isocurvature Perturbations
• Classical inflaton field induced creation of superheavy dark matter
• Primordial nucleosynthesis and hadronic decay of a massive particle with a relatively short lifetime
• Long-lived superheavy particles in dynamical supersymmetry-breaking models in supergravity
• Limit on the Detectability of the Energy Scale of Inflation
• Constraints on isocurvature models from the WMAP first-year data
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Big-bang nucleosynthesis and hadronic decay of long-lived massive particles
• Ultrahigh-energy cosmic rays, superheavy long-lived particles, and matter creation after inflation

Cited by

• Superheavy Dark Matter from the String Theory Axiverse
• Purely gravitational dark matter production in warm inflation