Dark Matter in the MSSM Golden Region

Abstract

Dark matter is examined within the ``golden region'' of the Minimal Supersymmetric Standard Model. This region satisfies experimental constraints, including a lower bound on the Higgs mass of 114 GeV, and minimizes fine-tuning of the Z boson mass. Here we impose additional constraints (particularly due to experimental bounds on $b\to s\gamma$). Then we find the properties of the Dark Matter in this region. Neutralinos with a relic density that provides the amount of dark matter required by cosmological data are shown to consist of a predominant gaugino (rather than higgsino) fraction. In addition, the U(1)${}_Y$ gaugino mass parameter must satisfy $M_1<300$ GeV.

arXiv comment12 pages, 5 figures

References in corpus (8)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• DarkSUSY: Computing Supersymmetric Dark Matter Properties Numerically
• Search for Neutral MSSM Higgs Bosons at LEP
• Branching Fraction and Photon Energy Spectrum b -> s gamma
• Supersymmetry, Naturalness, and Signatures at the LHC
• An inclusive measurement of the photon energy spectrum in b->s gamma decays
• A Collider Signature of the Supersymmetric Golden Region

Cited by in corpus (5)

• Supersymmetry Without Prejudice
• Fitting the Phenomenological MSSM
• Polarized Tops from Stop Decays at the LHC
• Implications of the Higgs Discovery in the MSSM Golden Region
• Perturbations of discrete lattices and almost periodic sets