Simulation and background characterisation of the SABRE South experiment: SABRE South Collaboration

E. Barberio; T. Baroncelli; L. J. Bignell; I. Bolognino; G. Brooks; F. Dastgiri; G. D’Imperio; A. Di Giacinto; A. R. Duffy; M. Froehlich; G. Fu; M. S.M. Gerathy; G. C. Hill; S. Krishnan; G. J. Lane; G. Lawrence; K. T. Leaver; I. Mahmood; A. Mariani; P. McGee; L. J. McKie; P. C. McNamara; M. Mews; W. J.D. Melbourne; G. Milana; L. J. Milligan; J. Mould; F. Nuti; V. Pettinacci; F. Scutti; Z. Slavkovská; N. J. Spinks; O. Stanley; A. E. Stuchbery; G. N. Taylor; C. Tomei; P. Urquijo; C. Vignoli; A. G. Williams; Y. Y. Zhong; M. J. Zurowski

doi:10.1140/epjc/s10052-023-11817-z

Simulation and background characterisation of the SABRE South experiment: SABRE South Collaboration

E. Barberio, T. Baroncelli, L. J. Bignell, I. Bolognino, G. Brooks, F. Dastgiri, G. D’Imperio, A. Di Giacinto, A. R. Duffy, M. Froehlich, G. Fu, M. S.M. Gerathy, G. C. Hill, S. Krishnan, G. J. Lane, G. Lawrence, K. T. Leaver, I. Mahmood, A. Mariani, P. McGeeL. J. McKie, P. C. McNamara^*, M. Mews, W. J.D. Melbourne, G. Milana, L. J. Milligan, J. Mould, F. Nuti, V. Pettinacci, F. Scutti, Z. Slavkovská, N. J. Spinks, O. Stanley, A. E. Stuchbery, G. N. Taylor, C. Tomei, P. Urquijo, C. Vignoli, A. G. Williams, Y. Y. Zhong, M. J. Zurowski

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

SABRE (Sodium iodide with Active Background REjection) is a direct detection dark matter experiment based on arrays of radio-pure NaI(Tl) crystals. The experiment aims at achieving an ultra-low background rate and its primary goal is to confirm or refute the results from the DAMA/LIBRA experiment. The SABRE Proof-of-Principle phase was carried out in 2020–2021 at the Gran Sasso National Laboratory (LNGS), in Italy. The next phase consists of two full-scale experiments: SABRE South at the Stawell Underground Physics Laboratory, in Australia, and SABRE North at LNGS. This paper focuses on SABRE South and presents a detailed simulation of the detector, which is used to characterise the background for dark matter searches including DAMA/LIBRA-like modulation. We estimate an overall background of 0.72 cpd/kg/ keV _ee in the energy range 1–6 keV _ee primarily due to radioactive contamination in the crystals. Given this level of background and considering that the SABRE South has a target mass of 50 kg, we expect to exclude (confirm) DAMA/LIBRA modulation at 4(5)σ within 2.5 years of data taking.

Original language	English
Article number	878
Journal	European Physical Journal C
Volume	83
Issue number	9
DOIs	https://doi.org/10.1140/epjc/s10052-023-11817-z
Publication status	Published - Sept 2023

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Barberio, E., Baroncelli, T., Bignell, L. J., Bolognino, I., Brooks, G., Dastgiri, F., D’Imperio, G., Di Giacinto, A., Duffy, A. R., Froehlich, M., Fu, G., Gerathy, M. S. M., Hill, G. C., Krishnan, S., Lane, G. J., Lawrence, G., Leaver, K. T., Mahmood, I., Mariani, A., ... Zurowski, M. J. (2023). Simulation and background characterisation of the SABRE South experiment: SABRE South Collaboration. European Physical Journal C, 83(9), Article 878. https://doi.org/10.1140/epjc/s10052-023-11817-z

@article{f7c88168061c4355a86eb24d5b54bd49,

title = "Simulation and background characterisation of the SABRE South experiment: SABRE South Collaboration",

abstract = "SABRE (Sodium iodide with Active Background REjection) is a direct detection dark matter experiment based on arrays of radio-pure NaI(Tl) crystals. The experiment aims at achieving an ultra-low background rate and its primary goal is to confirm or refute the results from the DAMA/LIBRA experiment. The SABRE Proof-of-Principle phase was carried out in 2020–2021 at the Gran Sasso National Laboratory (LNGS), in Italy. The next phase consists of two full-scale experiments: SABRE South at the Stawell Underground Physics Laboratory, in Australia, and SABRE North at LNGS. This paper focuses on SABRE South and presents a detailed simulation of the detector, which is used to characterise the background for dark matter searches including DAMA/LIBRA-like modulation. We estimate an overall background of 0.72 cpd/kg/ keV ee in the energy range 1–6 keV ee primarily due to radioactive contamination in the crystals. Given this level of background and considering that the SABRE South has a target mass of 50 kg, we expect to exclude (confirm) DAMA/LIBRA modulation at 4(5)σ within 2.5 years of data taking.",

author = "E. Barberio and T. Baroncelli and Bignell, {L. J.} and I. Bolognino and G. Brooks and F. Dastgiri and G. D{\textquoteright}Imperio and {Di Giacinto}, A. and Duffy, {A. R.} and M. Froehlich and G. Fu and Gerathy, {M. S.M.} and Hill, {G. C.} and S. Krishnan and Lane, {G. J.} and G. Lawrence and Leaver, {K. T.} and I. Mahmood and A. Mariani and P. McGee and McKie, {L. J.} and McNamara, {P. C.} and M. Mews and Melbourne, {W. J.D.} and G. Milana and Milligan, {L. J.} and J. Mould and F. Nuti and V. Pettinacci and F. Scutti and Z. Slavkovsk{\'a} and Spinks, {N. J.} and O. Stanley and Stuchbery, {A. E.} and Taylor, {G. N.} and C. Tomei and P. Urquijo and C. Vignoli and Williams, {A. G.} and Zhong, {Y. Y.} and Zurowski, {M. J.}",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = sep,

doi = "10.1140/epjc/s10052-023-11817-z",

language = "English",

volume = "83",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Institute for Ionics",

number = "9",

}

Barberio, E, Baroncelli, T, Bignell, LJ, Bolognino, I, Brooks, G, Dastgiri, F, D’Imperio, G, Di Giacinto, A, Duffy, AR, Froehlich, M, Fu, G, Gerathy, MSM, Hill, GC, Krishnan, S, Lane, GJ, Lawrence, G, Leaver, KT, Mahmood, I, Mariani, A, McGee, P, McKie, LJ, McNamara, PC, Mews, M, Melbourne, WJD, Milana, G, Milligan, LJ, Mould, J, Nuti, F, Pettinacci, V, Scutti, F, Slavkovská, Z, Spinks, NJ, Stanley, O, Stuchbery, AE, Taylor, GN, Tomei, C, Urquijo, P, Vignoli, C, Williams, AG, Zhong, YY & Zurowski, MJ 2023, 'Simulation and background characterisation of the SABRE South experiment: SABRE South Collaboration', European Physical Journal C, vol. 83, no. 9, 878. https://doi.org/10.1140/epjc/s10052-023-11817-z

TY - JOUR

T1 - Simulation and background characterisation of the SABRE South experiment

T2 - SABRE South Collaboration

AU - Barberio, E.

AU - Baroncelli, T.

AU - Bignell, L. J.

AU - Bolognino, I.

AU - Brooks, G.

AU - Dastgiri, F.

AU - D’Imperio, G.

AU - Di Giacinto, A.

AU - Duffy, A. R.

AU - Froehlich, M.

AU - Fu, G.

AU - Gerathy, M. S.M.

AU - Hill, G. C.

AU - Krishnan, S.

AU - Lane, G. J.

AU - Lawrence, G.

AU - Leaver, K. T.

AU - Mahmood, I.

AU - Mariani, A.

AU - McGee, P.

AU - McKie, L. J.

AU - McNamara, P. C.

AU - Mews, M.

AU - Melbourne, W. J.D.

AU - Milana, G.

AU - Milligan, L. J.

AU - Mould, J.

AU - Nuti, F.

AU - Pettinacci, V.

AU - Scutti, F.

AU - Slavkovská, Z.

AU - Spinks, N. J.

AU - Stanley, O.

AU - Stuchbery, A. E.

AU - Taylor, G. N.

AU - Tomei, C.

AU - Urquijo, P.

AU - Vignoli, C.

AU - Williams, A. G.

AU - Zhong, Y. Y.

AU - Zurowski, M. J.

PY - 2023/9

Y1 - 2023/9

N2 - SABRE (Sodium iodide with Active Background REjection) is a direct detection dark matter experiment based on arrays of radio-pure NaI(Tl) crystals. The experiment aims at achieving an ultra-low background rate and its primary goal is to confirm or refute the results from the DAMA/LIBRA experiment. The SABRE Proof-of-Principle phase was carried out in 2020–2021 at the Gran Sasso National Laboratory (LNGS), in Italy. The next phase consists of two full-scale experiments: SABRE South at the Stawell Underground Physics Laboratory, in Australia, and SABRE North at LNGS. This paper focuses on SABRE South and presents a detailed simulation of the detector, which is used to characterise the background for dark matter searches including DAMA/LIBRA-like modulation. We estimate an overall background of 0.72 cpd/kg/ keV ee in the energy range 1–6 keV ee primarily due to radioactive contamination in the crystals. Given this level of background and considering that the SABRE South has a target mass of 50 kg, we expect to exclude (confirm) DAMA/LIBRA modulation at 4(5)σ within 2.5 years of data taking.

AB - SABRE (Sodium iodide with Active Background REjection) is a direct detection dark matter experiment based on arrays of radio-pure NaI(Tl) crystals. The experiment aims at achieving an ultra-low background rate and its primary goal is to confirm or refute the results from the DAMA/LIBRA experiment. The SABRE Proof-of-Principle phase was carried out in 2020–2021 at the Gran Sasso National Laboratory (LNGS), in Italy. The next phase consists of two full-scale experiments: SABRE South at the Stawell Underground Physics Laboratory, in Australia, and SABRE North at LNGS. This paper focuses on SABRE South and presents a detailed simulation of the detector, which is used to characterise the background for dark matter searches including DAMA/LIBRA-like modulation. We estimate an overall background of 0.72 cpd/kg/ keV ee in the energy range 1–6 keV ee primarily due to radioactive contamination in the crystals. Given this level of background and considering that the SABRE South has a target mass of 50 kg, we expect to exclude (confirm) DAMA/LIBRA modulation at 4(5)σ within 2.5 years of data taking.

UR - http://www.scopus.com/inward/record.url?scp=85173928591&partnerID=8YFLogxK

U2 - 10.1140/epjc/s10052-023-11817-z

DO - 10.1140/epjc/s10052-023-11817-z

M3 - Article

SN - 1434-6044

VL - 83

JO - European Physical Journal C

JF - European Physical Journal C

IS - 9

M1 - 878

ER -

Simulation and background characterisation of the SABRE South experiment: SABRE South Collaboration

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