Dark Matter Particles in the Galactic Halo

TL;DR

The DAMA experiments provide strong, model-independent evidence for dark matter particles in the galactic halo through annual modulation signals observed over multiple years.

Contribution

This paper reports the detection of dark matter particles using a model-independent annual modulation signature with highly radio-pure NaI(Tl) detectors, confirming previous findings.

Findings

9.3 sigma confidence level detection

Evidence based on annual modulation signature

Ongoing DAMA/LIBRA-phase2 results

Abstract

The DAMA/LIBRA-phase1 and the former DAMA/NaI data (cumulative exposure 1.33 ton $\times$ yr, corresponding to 14 annual cycles) give evidence at 9.3 $\sigma$ C.L. for the presence of Dark Matter (DM) particles in the galactic halo, on the basis of the exploited model independent DM annual modulation signature by using highly radio-pure NaI(Tl) target. Results and comparisons will be shortly addressed as well as perspectives of the presently running DAMA/LIBRA-phase2. Finally, some arguments arisen in the discussion section of this workshop are mentioned in the Appendix.