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Results from DAMA/LIBRA at Gran Sasso

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Abstract

The DAMA project is an observatory for rare processes and it is operative deep underground at the Gran Sasso National Laboratory of the I.N.F.N. In particular, the DAMA/LIBRA (Large sodium Iodide Bulk for RAre processes) set-up consists of highly radiopure NaI(Tl) detectors for a total sensitive exposed mass of ≃250 kg. Recent results, obtained by this set-up by exploiting the model independent annual modulation signature of Dark Matter (DM) particles, have confirmed and improved those obtained by the former DAMA/NaI experiment. A model independent evidence for the presence of Dark Matter particles in the galactic halo is cumulatively obtained at 8.2 σ C.L. No systematics or side reactions able to account for the measured modulation amplitude and to contemporaneously satisfy all the many specific requirements of the signature have been found or suggested by anyone over more than a decade. An example of one of the many possible model dependent corollary quests for the candidate particles and for the related astrophysical, nuclear and particle physics scenarios is presented considering the whole cumulative exposure. Future perspectives are shortly addressed.

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Authors and Affiliations

  1. Dip. di Fisica, Università di Roma “Tor Vergata”, 00133, Rome, Italy

    R. Bernabei & F. Nozzoli

  2. INFN, sez. Roma “Tor Vergata”, 00133, Rome, Italy

    R. Bernabei, P. Belli, F. Montecchia & F. Nozzoli

  3. Dip. di Fisica, Università di Roma “La Sapienza”, 00185, Rome, Italy

    F. Cappella, A. d’Angelo & D. Prosperi

  4. INFN, sez. Roma, 00185, Rome, Italy

    F. Cappella, A. d’Angelo, A. Incicchitti & D. Prosperi

  5. Laboratori Nazionali del Gran Sasso, I.N.F.N., Assergi, Italy

    R. Cerulli

  6. IHEP, Chinese Academy, P.O. Box 918/3, Beijing, 100039, China

    C. J. Dai, H. L. He, H. H. Kuang, X. H. Ma, X. D. Sheng & Z. P. Ye

  7. Laboratorio Sperimentale Policentrico di Ingegneria Medica, Università degli Studi di Roma “Tor Vergata”, Rome, Italy

    F. Montecchia

  8. University of Jing Gangshan, Jiangxi, China

    Z. P. Ye

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  1. R. Bernabei
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  2. P. Belli
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  4. R. Cerulli
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  5. C. J. Dai
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  6. A. d’Angelo
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  10. X. H. Ma
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Corresponding author

Correspondence to R. Cerulli.

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Bernabei, R., Belli, P., Cappella, F. et al. Results from DAMA/LIBRA at Gran Sasso. Found Phys 40, 900–916 (2010). https://doi.org/10.1007/s10701-009-9368-8

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  • DOI: https://doi.org/10.1007/s10701-009-9368-8

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