DAMA is searching for Dark Matter particles deep underground in the Gran Sasso National Laboratory by using several kinds of scintillators, acting as target-detectors; recent results are here summarized. In particular, the new DAMA/NaI-2 result (14962 kg.day) on the WIMP annual modulation signature achieved by the similar or equal to 100 kg highly radiopure NaI(TI) set-up is summarized. It turns out to be consistent with the DAMA/NaI-1 result (4549 kg.day) and a combined maximum likelihood analysis of the two data sets (19511 kg.day) favours at 99.6% C.L. the hypothesis of presence of an annual modulation of the rate in the energy region of interest for Dark Matter direct detection.
Belli, P., Bernabei, R., Dai, C., Di Nicolantonio, W., Ding, L., Ignesti, G., et al. (1999). Direct search for Dark Matter particles deep underground. In 3 K COSMOLOGY - EC-TMR CONFERENCE (pp.65-73). MELVILLE : AMER INST PHYSICS [10.1063/1.59342].
Direct search for Dark Matter particles deep underground
BERNABEI, RITA;
1999-01-01
Abstract
DAMA is searching for Dark Matter particles deep underground in the Gran Sasso National Laboratory by using several kinds of scintillators, acting as target-detectors; recent results are here summarized. In particular, the new DAMA/NaI-2 result (14962 kg.day) on the WIMP annual modulation signature achieved by the similar or equal to 100 kg highly radiopure NaI(TI) set-up is summarized. It turns out to be consistent with the DAMA/NaI-1 result (4549 kg.day) and a combined maximum likelihood analysis of the two data sets (19511 kg.day) favours at 99.6% C.L. the hypothesis of presence of an annual modulation of the rate in the energy region of interest for Dark Matter direct detection.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.