Low-Mass Dark Matter Search with the DarkSide-50 Experiment
Author(s): Agnes, P; Albuquerque, IFM; Alexander, T; Alton, AK; Araujo, GR; et al
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http://arks.princeton.edu/ark:/88435/pr1g44q| Abstract: | We present the results of a search for dark matter weakly interacting massive particles (WIMPs) in the mass range below 20 GeV/c(2) using a target of low-radioactivity argon with a 6786.0 kg d exposure. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso. 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 event/keVee/kg/d 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). |
| Publication Date: | 24-Aug-2018 |
| Electronic Publication Date: | 23-Aug-2018 |
| Citation: | Agnes, P, Albuquerque, IFM, Alexander, T, Alton, AK, Araujo, GR, Asner, DM, Ave, M, Back, HO, Baldin, B, Batignani, G, Biery, K, Bocci, V, Bonfini, G, Bonivento, W, Bottino, B, Budano, F, Bussino, S, Cadeddu, M, Cadoni, M, Calaprice, F, Caminata, A, Canci, N, Candela, A, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Cereseto, R, Chepurnov, A, Cicalo, C, Cifarelli, L, Cocco, AG, Covone, G, D Angelo, D, D Incecco, M, D Urso, D, Davini, S, De Candia, A, De Cecco, S, De Deo, M, De Filippis, G, De Rosa, G, De Vincenzi, M, Demontis, P, Derbin, AV, Devoto, A, Di Eusanio, F, Di Pietro, G, Dionisi, C, Downing, M, Edkins, E, Empl, A, Fan, A, Fiorillo, G, Fomenko, K, Franco, D, Gabriele, F, Gabrieli, A, Galbiati, C, Abia, P Garcia, Ghiano, Chiara, Giagu, S, Giganti, C, Giovanetti, GK, Gorchakov, O, Goretti, AM, Granato, F, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, BR, Hassanshahi, MH, Herner, K, Hosseini, B, Hughes, D, Humble, P, Hungerford, EV, Ianni, Al, Ianni, An, Ippolito, V, James, I, Johnson, TN, Kahn, Y, Keeter, K, Kendziora, CL, Kochanek, I, Koh, G, Korablev, D, Korga, G, Kubankin, A, Kuss, M, La Commara, M, Lai, M, Li, X, Lisanti, M, Lissia, M, Loer, B, Longo, G, Ma, Y, Machado, AA, Machulin, IN, Mandarano, A, Mapelli, L, Mari, SM, Maricic, J, Martoff, CJ, Messina, A, Meyers, PD, Milincic, R, Mishra-Sharma, S, Monte, A, Morrocchi, M, Mount, BJ, Muratova, VN, Musico, P, Nania, R, Agasson, A Navrer, Nozdrina, AO, Oleinik, A, Orsini, M, Ortica, F, Pagani, L, Pallavicini, M, Pandola, L, Pantic, E, Paoloni, E, Pazzona, F, Pelczar, K, Pelliccia, N, Pesudo, V, Pocar, A, Pordes, S, Poudel, SS, Pugachev, DA, Qian, H, Ragusa, F, Razeti, M, Razeto, A, Reinhold, B, Renshaw, AL, Rescigno, M, Riffard, Q, Romani, A, Rossi, B, Rossi, N, Sablone, D, Samoylov, O, Sands, W, Sanfilippo, S, Sant, M, Santorelli, R, Savarese, C, Scapparone, E, Schlitzer, B, Segreto, E, Semenov, DA, Shchagin, A, Sheshukov, A, Singh, PN, Skorokhvatov, MD, Smirnov, O, Sotnikov, A, Stanford, C, Stracka, S, Suffritti, GB, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Trinchese, P, Unzhakov, EV, Verducci, M, Vishneva, A, Vogelaar, B, Wada, M, Waldrop, TJ, Wang, H, Wang, Y, Watson, AW, Westerdale, S, Wojcik, MM, Wojcik, M, Xiang, X, Xiao, X, Yang, C, Ye, Z, Zhu, C, Zichichi, A, Zuzel, G, Collaboration, DarkSide. (2018). Low-Mass Dark Matter Search with the DarkSide-50 Experiment. PHYSICAL REVIEW LETTERS, 121 (10.1103/PhysRevLett.121.081307 |
| DOI: | doi:10.1103/PhysRevLett.121.081307 |
| ISSN: | 0031-9007 |
| EISSN: | 1079-7114 |
| Type of Material: | Journal Article |
| Journal/Proceeding Title: | PHYSICAL REVIEW LETTERS |
| Version: | Final published version. Article is made available in OAR by the publisher's permission or policy. |
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