CoGeNT, DAMA, and Light Neutralino Dark Matter

  title={CoGeNT, DAMA, and Light Neutralino Dark Matter},
  author={A. Belikov and John F. Gunion and D. W. Hooper and Tim M. P. Tait},
  journal={Physics Letters B},
Abstract Recent observations by the CoGeNT collaboration (as well as long standing observations by DAMA/LIBRA) suggest the presence of a ∼ 5 – 10 GeV dark matter particle with a somewhat large elastic scattering cross section with nucleons ( σ ∼ 10 − 40 cm 2 ). Within the context of the minimal supersymmetric standard model (MSSM), neutralinos in this mass range are not able to possess such large cross sections, and would be overproduced in the early universe. Simple extensions of the MSSM… Expand
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