Speaker
Description
The SABRE experiment aims to find Dark Matter through an annual modulation in the rate of ultra-high purity NaI(Tl) crystals in order to provide a model independent test of the signal observed by DAMA/LIBRA.
SABRE will be a double-site experiment, with two similar detectors located in the Northern hemisphere (LNGS, Italy) and in the Southern hemisphere (SUPL, Australia), in order to disentangle seasonal or site-related effects and verify the nature of any modulating signal.
SUPL is a newly built facility ready for the construction and commissioning of SABRE South this year. Using the already established LNGS facilities, a Proof-of-Principle was carried out from 2020 to 2022 to characterize the SABRE benchmark crystal NaI-33, demonstrating a background rate of 1.20±0.05 dru, the lowest ever reached after DAMA/LIBRA.
Two more crystals were grown recently and are currently under measurement in passive shielding underground at LNGS. Based on these promising results, and considering the limitations of using liquid scintillators at LNGS, SABRE North is proceeding to a full scale design with purely passive shielding made of copper and polyethylene.
Instead, SABRE South will have the crystal detectors immersed in a LAB based liquid scintillator veto, further surrounded by passive steel and polyethylene shielding and an additional plastic scintillator based muon veto on top.
This talk will report the status and prospects of SABRE, covering both the Northern and Southern facilities.
| Submitted on behalf of a Collaboration? | Yes |
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