Conveners
Session 13: Direct dark matter detection: status of current experiments-2
- Cristiano Galbiati (Princeton University)
Improvements in detector technologies have allowed direct detection experiments access to lower detection thresholds. In the case of the SuperCDMS Soudan experiment, this additional reach has been facilitated by applying strong electric potentials across each detector and taking advantage of the Neganov-Trofimov-Luke (NTL) effect to amplify ionization signals. For dark matter models with...
DEAP-3600 is a single phase dark matter detector filled with 3.3 tonnes of liquid argon (LAr). The active volume is viewed by an array of 255 PMTs, separated from the LAr by 50 cm of acrylic. The whole detector is submerged in a large cylindrical water Cherenkov detector, which acts as a muon veto. DEAP-3600 began operations in May 2016, and has been running stably since November 2016....
The ArDM experiment, installed in the Canfranc underground laboratory LSC in Spain, is the first tonne-scale dual phase Liquid Argon detector designed for direct Dark Matter detection. Due to its size it represents an important milestone in the world wide effort for the development of large LAr Dark Matter detectors. The results from a commissioning run in the single phase operational mode...
Millimeter-thick charge-coupled devices (CCDs) are outstanding particle detectors. Although initially developed for near-infrared astronomy, the low pixel noise also makes them the most sensitive detectors to signals from ionizing radiation. By virtue of their very low energy threshold (<100 eV of ionizing energy) and their unique capabilities for background characterization based on their...
Detecting the elusive WIMPs (Weakly Interacting Massive Particles) proposed to explain the dark matter has shown to be a very challenging effort. The study of distinctive features in the WIMP signal allowing disentangling it from other backgrounds is an important asset in this search. The motion of the Earth around the Sun will produce a modulation in the dark matter interaction rate along the...
SABRE is an experiment that is being developed to search for dark matter with an array of NaI(Tl) scintillating crystals. A primary goal is to test the DAMA-LIBRA modulation signal claimed to be evidence for dark matter. The experiment will employ NaI(Tl) crystals with low levels of internal radioactivity in an active shield of liquid scintillator and water. In the past two years SABRE has...
