DAMA/LIBRA-phase1 results and perspectives of the phase2
1 Dip. di Fisica, Università di Roma “Tor Vergata”, 00133 Rome, Italy
2 INFN, sez. Roma “Tor Vergata”, 00133 Rome, Italy
3 Laboratori Nazionali del Gran Sasso, I.N.F.N., Assergi, Italy
4 Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918/3, 100049 Beijing, China
5 Dip. di Fisica, Università di Roma “La Sapienza”, 00185 Rome, Italy
6 INFN, sez. Roma, 00185 Rome, Italy
7 Dip. di Ingegneria Civile e Ingegneria Informatica, Università di Roma “Tor Vergata”, 00133 Rome, Italy
8 University of Jing Gangshan, Jiangxi, China
Published online: 6 July 2016
The DAMA/LIBRA experiment (∼ 250 kg of highly radio-pure NaI(Tl)) is running deep underground at the Gran Sasso National Laboratory (LNGS) of the I.N.F.N. Here we briefly recall the results obtained in its first phase of measurements (DAMA/LIBRA–phase1; total exposure: 1.04 ton × yr). DAMA/LIBRA–phase1 and the former DAMA/NaI (cumulative exposure: 1.33 ton × yr) give evidence at 9.3 σ C.L. for the presence of DM particles in the galactic halo by exploiting the model-independent DM annual modulation signature. No systematic or side reaction able to mimic the exploited DM signature has been found or suggested by anyone over more than a decade. At present DAMA/LIBRA–phase2 is running with increased sensitivity.
© The Authors, published by EDP Sciences
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