Direct Dark Matter Detection - A spin 3/2 WIMP candidate

Understand

We consider a Dark Matter candidate particle of spin 3/2 with neutrino-like Standard Model strength interactions.

• In the Majorana case, the particle can account for all of the Dark Matter for a range of masses between 70-160 GeV, depending on the strength of the Higgs couplings.
• The elementary spin-dependent cross section on the nucleon is calculated to be 1.7 x 10^-2 pb, and does not depend on the mass or any additional parameters.
• The Dirac case is excluded by the very large coherent cross section.