DAMA/LIBRA results and perspectives

R. Bernabei (1); P. Belli (1); A. Di Marco (1); F. Cappella (2); A.; d'Angelo (2); A. Incicchitti (2); V. Caracciolo (3); R. Cerulli (3); C. J.; Dai (4); H. L. He (4); X. H. Ma (4); X. D. Sheng (4); R. G. Wang (4); F.; Montecchia (1,5); Z. P. Ye (4,6) ((1) Univ.; INFN Roma Tor Vergata; (2); Univ.; INFN Roma; (3) INFN LNGS; (4) IHEP Beijing; (5) Univ. Tor Vergata,; (6) Univ. Jing Gangshan)

arXiv:1301.6243·astro-ph.GA·January 29, 2013

DAMA/LIBRA results and perspectives

R. Bernabei (1), P. Belli (1), A. Di Marco (1), F. Cappella (2), A., d'Angelo (2), A. Incicchitti (2), V. Caracciolo (3), R. Cerulli (3), C. J., Dai (4), H. L. He (4), X. H. Ma (4), X. D. Sheng (4), R. G. Wang (4), F., Montecchia (1,5), Z. P. Ye (4,6) ((1) Univ.

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TL;DR

The DAMA/LIBRA experiment has provided strong, model-independent evidence for dark matter particles in the galactic halo through annual modulation detection, with results confirmed over multiple years and future plans discussed.

Contribution

This paper reports the latest results of DAMA/LIBRA, confirming dark matter detection via annual modulation with unprecedented significance and discussing future experimental perspectives.

Findings

01

8.9 sigma confidence level detection of dark matter

02

Model independent evidence from annual modulation

03

Total exposure of 1.17 ton-year over 13 years

Abstract

The DAMA/LIBRA experiment, running at the Gran Sasso National Laboratory of the I.N.F.N. in Italy, has a sensitive mass of about 250 kg highly radiopure NaI(Tl). It is mainly devoted to the investigation of Dark Matter (DM) particles in the Galactic halo by exploiting the model independent DM annual modulation signature. The present DAMA/LIBRA experiment and the former DAMA/NaI one (the first generation experiment having an exposed mass of about 100 kg) have released so far results corresponding to a total exposure of 1.17 ton yr over 13 annual cycles. They provide a model independent evidence of the presence of DM particles in the galactic halo at 8.9 sigma C.L.. A short summary of the obtained results is presented and future perspectives of the experiment mentioned.

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Taxonomy

TopicsDark Matter and Cosmic Phenomena · Solar and Space Plasma Dynamics · Astrophysics and Cosmic Phenomena