Physics – Medical Physics
Scientific paper
Apr 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apsp.conf..158b&link_type=abstract
ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS . Proceedings of the 9th Conference . Held
Physics
Medical Physics
Scientific paper
DAMA is an observatory for rare processes and it is operative deep underground at the Gran Sasso National Laboratory of the I.N.F.N. The experiment developes and uses low background scintillator for rare processes investigation. In this paper, after a short presentation of the main DAMA set-ups, the DAMA/NaI apparatus (≃ 100 kg highly radiopure NaI(Tl)) and its main results in the Dark Matter field will be addressed. This experiment, in particular, has effectively investigated the presence of a Dark Matter particle component in the galactic halo by exploiting the model-independent annual modulation signature over seven annual cycles (total exposure of 107731 kg × day), obtaining a 6.3 σ C.L. model-independent evidence for such a presence. In addition, some corollary model-dependent quests to investigate the nature of a candidate particle will be recalled. The new additional analysis for a pseudoscalar and for a scalar bosonic candidate (whose detection only involves electrons and photons/X-rays) will be addressed as well. Some perspectives of the second generation DAMA/LIBRA set-up (≃ 250 kg highly radiopure NaI(Tl)), presently in measurement deep underground, will be mentioned.
Belli P.
Bernabei R.
Cappella F.
Cerulli Ricardo
D'Angelo Annalisa
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