Kinetic Mixing as the Origin of Light Dark Scales

Feb, 2009
5 pages
Published in:
  • Phys.Rev.D 80 (2009) 035008
e-Print:

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Abstract: (arXiv)
We propose a model in which supersymmetric weak scale dark matter is charged under a U(1)_d dark gauge symmetry. Kinetic mixing between U(1)_d and hypercharge generates the appropriate hierarchy of scales needed to explain PAMELA and ATIC with a GeV scale force carrier and DAMA or INTEGRAL using the proposals of inelastic or exciting dark matter. Because of the extreme simplicity of this setup, observational constraints imply a number of unambiguous predictions, including the size of the hypercharge D-term vacuum expectation value.
  • 12.60.Jv
  • 12.60.Cn
  • 12.60.Fr
  • symmetry: U(1)
  • hypercharge: D-term
  • dark matter
  • mixing: kinetic
  • supersymmetry
  • dark matter: annihilation
  • WIMP nucleus: inelastic scattering
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