Low-Mass Dark Matter Search with the DarkSide-50 Experiment
Creators: name: The DarkSide Collaboration
name: Agnes, P.
name: Albuquerque, I. F. M.
name: Alexander, T.
name: Alton, A. K.
name: Araujo, G. R.
name: Asner, D. M.
name: Ave, M.
name: Back, H. O.
name: Baldin, B.
name: Batignani, G.
name: Biery, K.
name: Bocci, V.
name: Bonfini, G.
name: Bonivento, W.
name: Bottino, B.
name: Budano, F.
name: Bussino, S.
name: Cadeddu, M.
name: Cadoni, M.
name: Calaprice, F.
name: Caminata, A.
name: Canci, N.
name: Candela, A.
name: Caravati, M.
name: Cariello, M.
name: Carlini, M.
name: Carpinelli, M.
name: Catalanotti, S.
name: Cataudella, V.
name: Cavalcante, P.
name: Cavuoti, S.
name: Cereseto, R.
name: Chepurnov, A.
name: Cicalò, C.
name: Cifarelli, L.
name: Cocco, A. G.
name: Covone, G.
name: D'Angelo, D.
name: D'Incecco, M.
name: D'Urso, D.
name: Davini, S.
name: De Candia, A.
name: De Cecco, S.
name: De Deo, M.
name: De Filippis, G.
name: De Rosa, G.
name: De Vincenzi, M.
name: Demontis, P.
name: Derbin, A. V.
name: Devoto, A.
name: Di Eusanio, F.
name: Di Pietro, G.
name: Dionisi, C.
name: Downing, M.
name: Edkins, E.
name: Empl, A.
name: Fan, A.
name: Fiorillo, G.
name: Fomenko, K.
name: Franco, D.
name: Gabriele, F.
name: Gabrieli, A.
name: Galbiati, C.
name: Abia, P. Garcia
name: Ghiano, C.
name: Giagu, S.
name: Giganti, C.
name: Giovanetti, G. K.
name: Gorchakov, O.
name: Goretti, A. M.
name: Granato, F.
name: Gromov, M.
name: Guan, M.
name: Guardincerri, Y.
name: Gulino, M.
name: Hackett, B. R.
name: Hassanshahi, M. H.
name: Herner, K.
name: Hosseini, B.
name: Hughes, D.
name: Humble, P.
name: Hungerford, E. V.
name: Ianni, Al.
name: Ianni, An.
name: Ippolito, V.
name: James, I.
name: Johnson, T. N.
name: Kahn, Y.
name: Keeter, K.
name: Kendziora, C. L.
name: Kochanek, I.
name: Koh, G.
name: Korablev, D.
name: Korga, G.
name: Kubankin, A.
name: Kuss, M.
name: La Commara, M.
name: Lai, M.
name: Li, X.
name: Lisanti, M.
name: Lissia, M.
name: Loer, B.
name: Longo, G.
name: Ma, Y.
name: Machado, A. A.
name: Machulin, I. N.
name: Mandarano, A.
name: Mapelli, L.
name: Mari, S. M.
name: Maricic, J.
name: Martoff, C. J.
name: Messina, A.
name: Meyers, P. D.
name: Milincic, R.
name: Mishra-Sharma, S.
name: Monte, A.
name: Morrocchi, M.
name: Mount, B. J.
name: Muratova, V. N.
name: Musico, P.
name: Nania, R.
name: Agasson, A. Navrer
name: Nozdrina, A. O.
name: Oleinik, A.
name: Orsini, M.
name: Ortica, F.
name: Pagani, L.
name: Pallavicini, M.
name: Pandola, L.
name: Pantic, E.
name: Paoloni, E.
name: Pazzona, F.
name: Pelczar, K.
name: Pelliccia, N.
name: Pesudo, V.
name: Pocar, A.
name: Pordes, S.
name: Poudel, S. S.
name: Pugachev, D. A.
name: Qian, H.
name: Ragusa, F.
name: Razeti, M.
name: Razeto, A.
name: Reinhold, B.
name: Renshaw, A. L.
name: Rescigno, M.
name: Riffard, Q.
name: Romani, A.
name: Rossi, B.
name: Rossi, N.
name: Sablone, D.
name: Samoylov, O.
name: Sands, W.
name: Sanfilippo, S.
name: Sant, M.
name: Santorelli, R.
name: Savarese, C.
name: Scapparone, E.
name: Schlitzer, B.
name: Segreto, E.
name: Semenov, D. A.
name: Shchagin, A.
name: Sheshukov, A.
name: Singh, P. N.
name: Skorokhvatov, M. D.
name: Smirnov, O.
name: Sotnikov, A.
name: Stanford, C.
name: Stracka, S.
name: Suffritti, G. B.
name: Suvorov, Y.
name: Tartaglia, R.
name: Testera, G.
name: Tonazzo, A.
name: Trinchese, P.
name: Unzhakov, E. V.
name: Verducci, M.
name: Vishneva, A.
name: Vogelaar, B.
name: Wada, M.
name: Waldrop, T. J.
name: Wang, H.
name: Wang, Y.
name: Watson, A. W.
name: Westerdale, S.
name: Wojcik, M. M.
name: Wojcik, M.
name: Xiang, X.
name: Xiao, X.
name: Yang, C.
name: Ye, Z.
name: Zhu, C.
name: Zichichi, A.
name: Zuzel, G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present the results of a search for dark matter WIMPs in the mass range below 20 GeV/c^2 using a target of low-radioactivity argon. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso (LNGS). The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1 keVee. The observed rate in the detector at 0.5 keVee is about 1.5 events/keVee/kg/day and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8 GeV/c^2 for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6 GeV/c^2.
description: 9 pages, 8 figures; submission accepted by journal