Calculated WIMP signals at the ANDES laboratory: comparison with
  northern and southern located dark matter detectors
  Weakly Interacting Massive Particles (WIMP) are possible components of the
Universe's Dark Matter. The detection of WIMP is signalled by the recoil of the
atomic nuclei which form a detector. CoGeNT at the Soudan Underground
Laboratory (SUL) and DAMA at the Laboratori Nazionali del Gran Sasso (LNGS)
have reported data on annual modulation of signals attributed to WIMP. Both
experiments are located in laboratories of the northern hemisphere. Dark matter
detectors are planned to operate (or already operate) in laboratories of the
southern hemisphere, like SABRE at Stawell Underground Physics Laboratory
(SUPL) in Australia, and DM-ICE in the South Pole. In this work we have
analysed the dependence of diurnal and annual modulation of signals, pertaining
to the detection of WIMP, on the coordinates of the laboratory, for experiments
which may be performed in the planned new underground facility ANDES (Agua
Negra Deep Experimental Site), to be built in San Juan, Argentina. We made
predictions for NaI and Ge-type detectors placed in ANDES, to compare with
DAMA, CoGeNT, SABRE and DM-ICE arrays, and found that the diurnal modulation of
the signals, at the site of ANDES, is amplified at its maximum value, both for
NaI (Ge)-type detectors, while the annual modulation remains unaffected by the
change in coordinates from north to south.
