Monte Carlo simulation of the SABRE PoP background
Abstract
SABRE (Sodium-iodide with Active Background REjection) is a direct dark matter search experiment based on an array of radio-pure NaI(Tl) crystals surrounded by a liquid scintillator veto. Twin SABRE experiments in the Northern and Southern Hemispheres will differentiate a dark matter signal from seasonal and local effects. The experiment is currently in a Proof-of-Principle (PoP) phase, whose goal is to demonstrate that the background rate is low enough to carry out an independent search for a dark matter signal, with sufficient sensitivity to confirm or refute the DAMA result during the following full-scale experimental phase. The impact of background radiation from the detector materials and the experimental site needs to be carefully investigated, including both intrinsic and cosmogenically activated radioactivity. Based on the best knowledge of the most relevant sources of background, we have performed a detailed Monte Carlo study evaluating the expected background in the dark matter search spectral region. The simulation model described in this paper guides the design of the full-scale experiment and will be fundamental for the interpretation of the measured background and hence for the extraction of a possible dark matter signal.
Keywords
Cite
@article{arxiv.1806.09344,
title = {Monte Carlo simulation of the SABRE PoP background},
author = {M. Antonello and E. Barberio and T. Baroncelli and J. Benziger and L. J. Bignell and I. Bolognino and F. Calaprice and S. Copello and D. D'Angelo and G. D'Imperio and I. Dafinei and G. Di Carlo and M. Diemoz and A. Di Ludovico and A. R. Duffy and F. Froborg and G. K. Giovanetti and E. Hoppe and A. Ianni and L. Ioannucci and S. Krishnan and G. J. Lane and I. Mahmood and A. Mariani and P. McGee and P. Montini and J. Mould and F. Nuti and D. Orlandi and M. Paris and V. Pettinacci and L. Pietrofaccia and D. Prokopovich and S. Rahatlou and N. Rossi and A. Sarbutt and E. Shields and M. J. Souza and A. E. Stuchbery and B. Suerfu and C. Tomei and P. Urquijo and C. Vignoli and M. Wada and A. Wallner and A. G. Williams and J. Xu and M. Zurowski},
journal= {arXiv preprint arXiv:1806.09344},
year = {2018}
}
Comments
13 pages, 5 figures