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

Abstract

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. The amplitude at the nuclear level is of the purely isovector form. We make detailed predictions for differential and total rates of scattering on a variety of nuclear targets of interest to the current direct detection experiments. For heavy targets the annual modulation amplitude is predicted to be negative, which may help to determine the mass of the WIMP if and when data become available.

20 pages, eps or pdf figures. arXiv admin note: text overlap with arXiv:1108.4768, arXiv:1202.3105

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Cited by in corpus (20)

• The case for decaying spin-3/2 dark matter
• Theoretical direct WIMP detection rates for transitions to excited states
• Localization of Gravitino Field on $f(R)$ Thick Branes
• Two-Higgs-Doublet-Portal Dark-Matter Models in Light of Direct Search and LHC Data
• Exploring Spin-3/2 Dark Matter with Effective Higgs Couplings
• Minimal Spin-3/2 Dark Matter in a simple $s$-channel model
• Theoretical direct WIMP detection rates for transitions to nuclear excited states
• Light WIMP searches involving electron scattering
• Spin portal to dark matter
• Spin-3/2 dark matter in a simple $t$-channel model
• Anomalous X-Ray Galactic signal from 7 keV spin-$3/2$ dark matter decay
• Effective Field Theory approach to lepto-philic self conjugate dark matter
• Inelastic WIMP-nucleus scattering to the first excited state in ${}^{125}$Te
• Neutron stars with spin polarized self-interacting dark matter
• Hidden Spin-3/2 Field in the Standard Model
• Localization of Gravitino Field on Thin Branes
• Electromagnetic properties of spin-3/2 Majorana particles
• Twist-2 operators induced Dark Matter Interactions
• Chiral spin-3/2 particles in a medium
• Electromagnetic annihilation into charged leptons and scattering off nucleons of spin-3/2 Majorana particles