2007/05/31 by J. P. Roberts, Jonathan Roberts, Roberts, J. P.
Physics and Astronomy · #Astrophysics #CMB cold spot #Cold dark matter #Cosmic microwave background #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scale (ratio) #Supersymmetry #hep-ph
paper · pdf · doi:10.48550/arxiv.0706.0031
6 pages, 3 figures, talk given at Rencontres de Moriond, Electroweak interactions and Unified theories
arxiv created 2007/05/31 · openalex publication_date 2007/05/31 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
One of the key motivations for supersymmetry is that it provides a natural candidate for dark matter. For a long time the density of this candidate particle fell within cosmological bounds across much of the SUSY parameter space. However with the precision results of WMAP, it has become apparent that the majority of the SUSY parameter space no longer fits the observed relic density. This has given rise to claims that supersymmetry no longer provides a natural explanation of dark matter. We address this claim by quantifying the degree of fine-tuning required for the different dark matter regions. We find that the dark matter regions vary widely in the degree of tuning required. This degree of tuning can then be used to provide valuable insights into the structure of SUSY breaking at the GUT scale.