DAMA/NaI results on particle Dark Matter investigation by the model independent annual modulation signature
The direct model independent DAMA/NaI detected signal from Dark Matter particles in the galactic halo
The DAMA/NaI experiment was proposed in 1990, designed and realized having
the main aim to investigate in a model independent way the presence
of a Dark Matter particle component in the galactic halo.
For this purpose, we planned to exploit the effect of the Earth
revolution around the Sun on the Dark Matter particles
interactions on a suitable underground set-up.
In fact, as a consequence of its
annual revolution, the Earth should be
crossed by a larger flux of Dark Matter particles roughly around June 2nd (when its rotational velocity is summed
to the one of the solar system with respect to the Galaxy)
and by a smaller one roughly around December 2nd (when the two velocities are subtracted).