Dark Matter: DAMA/LIBRA and its perspectives

TL;DR

DAMA/LIBRA has consistently observed an annual modulation signal in underground experiments, supporting dark matter detection, with recent data reinforcing the evidence and ongoing efforts to improve sensitivity.

Contribution

This paper summarizes the DAMA/LIBRA experiment's long-term results and perspectives, highlighting the persistent detection of dark matter signals and advancements in experimental setup.

Findings

Confirmed annual modulation signal consistent with dark matter

Accumulated exposure of 2.86 ton×yr over 22 years

Enhanced sensitivity with lower energy threshold in phase 2

Abstract

The long-standing model-independent annual modulation effect measured by DAMA deep underground at Gran Sasso Laboratory with different experimental configurations is summarized and perspectives will be highlighted. DAMA/LIBRA-phase2 set-up, $\simeq$ 250 kg highly radio-pure NaI(Tl) confirms the evidence of a signal that meets all the requirements of the model independent Dark Matter annual modulation signature at high C.L.; the full exposure is 2.86 ton $\times$ yr over 22 annual cycles. The experiment is currently collecting data in the DAMA/LIBRA-phase2 empowered configuration with an even lower software energy threshold. Other recent claims are shortly commented.