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Status and prospects of SABRE North

by A. Mariani, J. B. Benziger, F. Calaprice, S. Copello, I. Dafinei, D. D'Angelo, G. D'Imperio, G. Di Carlo, M. Diemoz, A. Di Giacinto, A. Di Ludovico, M. Ianna, A. Ianni, S. Milana, D. Orlandi, V. Pettinacci, L. Pietrofaccia, S. Rahatlou, B. Suerfu, C. Tomei, C. Vignoli, and A. Zani

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Submission summary

Authors (as registered SciPost users): Ambra Mariani
Submission information
Preprint Link: scipost_202210_00014v2  (pdf)
Date accepted: 2023-03-27
Date submitted: 2022-12-20 12:05
Submitted by: Mariani, Ambra
Submitted to: SciPost Physics Proceedings
Proceedings issue: 14th International Conference on Identification of Dark Matter (IDM2022)
Ontological classification
Academic field: Physics
  • High-Energy Physics - Experiment
Approach: Experimental


We present the characterization of a low background NaI(Tl) crystal for the SABRE North experiment. The crystal NaI-33, was studied in two different setups at Laboratori Nazion- ali del Gran Sasso, Italy. The Proof-of-Principle (PoP) detector was equipped with a liquid scintillator veto and collected data for about one month (90 kg×days). The PoP-dry setup consisted of NaI-33 in a purely passive shielding and collected data for almost one year (891 kg×days). The average background in the energy region of interest (1-6 keV) for dark matter search was 1.20 ± 0.05 and 1.39 ± 0.02 counts/day/kg/keV within the PoP and the PoP-dry setup, respectively. This result opens to a new shielding design for the physics phase of the SABRE North detector, that does not foresee the use of an organic liquid scintillator external veto , in compliance with the new safety and environmental requirements of Laboratori Nazionali del Gran Sasso.

List of changes

Added a table containing the activities of the main background components of other NaI-based experiments.

Published as SciPost Phys. Proc. 12, 026 (2023)

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