  Among dark-matter candidates are the WIMPs (Weekly Interacting Massive
Particles). 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.
