First Results from DAMA/LIBRA
- Dip. di Fisica, Universita di Roma 'Tor Vergata' and INFN, sez. Roma 'Tor Vergata', I-00133 Rome (Italy)
- Dip. di Fisica, Universita di Roma 'La Sapienza' and INFN, sez. Roma, I-00185 Rome (Italy)
- Laboratori Nazionali del Gran Sasso, I.N.F.N., Assergi (Italy)
- IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039 (China)
The highly radiopure {approx_equal}250 kg NaI(Tl) DAMA/LIBRA set-up is running at the Gran Sasso National Laboratory of the I.N.F.N.. The first result obtained by exploiting the model independent annual modulation signature for Dark Matter (DM) particles confirms the former DAMA/NaI result. The DAMA/NaI and DAMA/LIBRA data satisfy all the many peculiarities of the DM annual modulation signature; neither systematic effects nor side reactions able to account for the observed modulation amplitude and to contemporaneously satisfy all the several requirements of the DM signature are available. Considering the former DAMA/NaI and the present DAMA/LIBRA data all together (total exposure 0.82 tonxyr), the presence of Dark Matter particles in the galactic halo is supported at 8.2 {sigma} C.L.
- OSTI ID:
- 21301108
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1115; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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