@article{95fdf6b563a44c0e8bec0d1481dceb3f,
title = "Calibration of the liquid argon ionization response to low energy electronic and nuclear recoils with DarkSide-50",
abstract = "DarkSide-50 has demonstrated the high potential of dual-phase liquid argon time projection chambers in exploring interactions of WIMPs in the GeV/c2 mass range. The technique, based on the detection of the ionization signal amplified via electroluminescence in the gas phase, allows us to explore recoil energies down to the sub-keV range. We report here on the DarkSide-50 measurement of the ionization yield of electronic recoils down to ∼180 eVer, exploiting Ar37 and Ar39 decays, and extrapolated to a few ionization electrons with the Thomas-Imel box model. Moreover, we present a model-dependent determination of the ionization response to nuclear recoils down to ∼500 eVnr, the lowest ever achieved in liquid argon, using in situ neutron calibration sources and external datasets from neutron beam experiments.",
author = "{(DarkSide Collaboration)} and P. Agnes and Albuquerque, {I. F.M.} and T. Alexander and Alton, {A. K.} and M. Ave and Back, {H. O.} and G. Batignani and K. Biery and V. Bocci and Bonivento, {W. M.} and B. Bottino and S. Bussino and M. Cadeddu and M. Cadoni and F. Calaprice and A. Caminata and N. Canci and M. Caravati and M. Cariello and M. Carlini and M. Carpinelli and S. Catalanotti and V. Cataudella and P. Cavalcante and S. Cavuoti and A. Chepurnov and C. Cical{\`o} and Cocco, {A. G.} and G. Covone and D. D'Angelo and S. Davini and {De Candia}, A. and {De Cecco}, S. and {De Filippis}, G. and {De Rosa}, G. and Derbin, {A. V.} and A. Devoto and M. D'Incecco and C. Dionisi and F. Dordei and M. Downing and D. D'Urso and G. Fiorillo and D. Franco and F. Gabriele and C. Galbiati and C. Ghiano and C. Giganti and Giovanetti, {G. K.} and Meyers, {P. D.}",
note = "Funding Information: We are grateful to Francesc Salvat and Pascal Lablanquie for their comments and suggestions. The DarkSide Collaboration offers its profound gratitude to the Gran Sasso National Laboratory and its staff for their invaluable technical and logistical support. We also thank the Fermilab Particle Physics, Scientific, and Core Computing Divisions. Construction and operation of the DarkSide-50 detector was supported by the U.S. National Science Foundation (NSF) (Grants No. PHY-0919363, No. PHY-1004072, No. PHY-1004054, No. PHY-1242585, No. PHY-1314483, No. PHY-1314501, No. PHY-1314507, No. PHY-1352795, No. PHY-1622415, and associated collaborative Grants No. PHY-1211308 and No. PHY-1455351), the Italian Istituto Nazionale di Fisica Nucleare, the U.S. Department of Energy (Contracts No. DE-FG02-91ER40671, No. DEAC02-07CH11359, and No. DE-AC05-76RL01830), the Polish NCN (Grant No. UMO-2014/15/B/ST2/02561) and the Foundation for Polish Science (Grant No. Team2016-2/17). We also acknowledge financial support from the French Institut National de Physique Nucl{\'e}aire et de Physique des Particules (IN2P3), the IN2P3-COPIN consortium (Grant No. 20-152), and the UnivEarthS LabEx program (Grants No. ANR-10-LABX-0023 and No. ANR-18-IDEX-0001), from the So Paulo Research Foundation (FAPESP) (Grant No. 2016/09084-0), from the Interdisciplinary Scientific and Educational School of Moscow University “Fundamental and Applied Space Research,” from the Program of the Ministry of Education and Science of the Russian Federation for higher education establishments, Project No. FZWG-2020-0032 (2019-1569), and from IRAP AstroCeNT funded by FNP from ERDF. Isotopes used in this research were supplied by the United States Department of Energy Office of Science by the Isotope Program in the Office of Nuclear Physics. Publisher Copyright: {\textcopyright} 2021 American Physical Society. ",
year = "2021",
month = oct,
day = "15",
doi = "10.1103/PhysRevD.104.082005",
language = "English (US)",
volume = "104",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "8",
}