DAMA RESULTS: DARK MATTER IN THE GALACTIC HALO

Authors

  • R. Bernabei Dip. di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome; INFN, sez. Roma “Tor Vergata”, I-00133 Rome
  • P. Belli INFN, sez. Roma “Tor Vergata”, I-00133 Rome
  • F. Cappella Dip. di Fisica, Università di Roma “La Sapienza”, I-00185 Rome; INFN, sez. Roma, I-00185 Rome
  • V. Caracciolo Laboratori Nazionali del Gran Sasso, I.N.F.N., Assergi
  • R. Cerulli Laboratori Nazionali del Gran Sasso, I.N.F.N., Assergi
  • C. J. Dai IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039
  • A. d’Angelo Dip. di Fisica, Università di Roma “La Sapienza”, I-00185 Rome; INFN, sez. Roma, I-00185 Rome
  • A. Di Marco Dip. di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome; INFN, sez. Roma “Tor Vergata”, I-00133 Rome
  • H. L. He IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039
  • A. Incicchitti INFN, sez. Roma, I-00185 Rome
  • X. H. Ma IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039
  • F. Montecchia INFN, sez. Roma “Tor Vergata”, I-00133 Rome; Laboratorio Sperimentale Policentrico di Ingegneria Medica, Università degli Studi di Roma “Tor Vergata”
  • X. D. Sheng IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039
  • R. G. Wang IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039
  • Z. P. Ye IHEP, Chinese Academy, P.O. Box 918/3, Beijing 100039; University of Jing Gangshan, Jiangxi

DOI:

https://doi.org/10.14311/AP.2013.53.0589

Abstract

Experimental efforts and theoretical developmens support that most of the Universe is Dark and a large fraction of it should be made of relic particles; many possibilities are open on their nature and interaction types. In particular, the DAMA/LIBRA experiment at Gran Sasso Laboratory (sensitive mass: ~250 kg) is mainly devoted to the investigation of Dark Matter (DM) particles in the Galactic halo by exploiting the model independent DM annual modulation signature with higly radiopure Na I(Tl) targets. DAMA/LIBRA is the succesor of the first generation DAMA/NaI (sensitive mass: ~100 kg); cumulatively the two experiments have released so far the results obtained by analyzing an exposure of 1.17 t yr, collected over 13 annual cycles. The data show a model independent evidence of the presence of DM particles in the galactic halo at 8.9σ confidence level (C.L.). Some of the already achieved results are shortly reminded, the last upgrade occurred at fall 2010 is mentioned and future perspectives are sumarized.

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Published

2013-12-18

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Articles