Constraints on minimal SUSY models with warm dark matter neutralinos

2006/07/02 by Graciela B. Gelmini, Graciela Gelmini, Carlos E. Yaguna · 1 citation
Physics and Astronomy · #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Light dark matter #Lightest Supersymmetric Particle #Neutralino #Nucleosynthesis #Particle physics #Particle physics theoretical and experimental studies #Physics #Scalar field dark matter #Supersymmetry #hep-ph

paper · pdf · doi:10.1016/j.physletb.2006.10.063

published as Phys.Lett. B643 (2006) 241-245 · 5 pages, 2 figures

arxiv created 2006/07/02 · openalex publication_date 2006/11/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

If the energy density of the Universe before nucleosynthesis is dominated by a scalar field ϕ that decays and reheats the plasma to a low reheating temperature T_RH, neutralinos may be warm dark matter particles. We study this possibility and derive the conditions on the production mechanism and on the supersymmetric spectrum for which it is viable. Large values of the μ parameter and of the slepton masses are characteristic features of these models. We compute the expected direct detection cross sections and point out that Split-SUSY provides a natural framework for neutralino warm dark matter

Citations

• Moduli-Induced Gravitino Problem
• Neutralino dark matter detection in split supersymmetry scenarios
• Moduli/inflaton mixing with supersymmetry-breaking field
• High‐Resolution Measurements of the Halos of Four Dark Matter–Dominated Galaxies: Deviations from a Universal Density Profile
• Production of Massive Stable Particles in Inflaton Decay
• Relic neutralino density in scenarios with intermediate unification scale
• Halo Substructure and the Power Spectrum

Cited by

• Ultra-cold weakly interacting massive particles: relics of non-standard pre-big-bang-nucleosynthesis cosmologies