MSSM WIMPs–Nucleon cross-section for Eχ < 500GeV

Abstract

Among dark matter candidates are the Weakly Interacting Massive Particles (WIMPs). Low-threshold detectors could directly detect dark matter by measuring the energy deposited by the particles. In this work, we examine the cross-section for the elastic scattering of WIMPs on nucleons, in the spin-dependent and spin-independent channels. WIMPs are taken as neutralinos in the context of the minimal super-symmetric extension of the standard model (MSSM). The dependence of the results with the adopted MSSM parameters is discussed.