  Dark Matter particles can be detected directly via their elastic scattering
with nuclei. Next generation experiments can eventually find physical evidences
about dark matter candidates. With this motivation in mind, we have calculated
the expected signals of dark matter particles in xenon detectors. The
calculations were performed by considering different masses and parameters
within the minimal supersymmetric standard model. Since the detectors can also
detect neutrinos, we have analyzed the supernova neutrino signal including a
sterile neutrino in the formalism. Using this 3+1 scheme, we make predictions
for both the normal and inverse mass hierarchy. In order to perform a study of
the response of planned direct-detection experiments, to be located in ANDES
(Agua Negra Deep Experimental Site), we have calculated the neutrino
contributions to the background by taken into account reactor's neutrinos and
geoneutrinos at the site of the lab. As a test detector, we take a Xenon1T-like
array.
