Title: | Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment |
Authors: | Agnes, P. Albuquerque, I. F. M. Alexander, T. Alton, A. K. Araujo, G. R. Asner, D. M. Ave, M. Back, H. O. 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, STEFANO Cereseto, R. Chepurnov, A. Cicalò, C. Cifarelli, L. Cocco, A. G. 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, A. V. 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. Garcia Abia, P. Ghiano, C. Giagu, S. Giganti, C. Giovanetti, G. K. Gorchakov, O. Goretti, A. M. Granato, F. Gromov, M. Guan, M. Guardincerri, Y. Gulino, M. Hackett, B. R. Hassanshahi, M. H. Herner, K. Hosseini, B. Hughes, D. Humble, P. Hungerford, E. V. Ianni, Al. Ianni, An. Ippolito, V. James, I. Johnson, T. N. Kahn, Y. Keeter, K. Kendziora, C. L. 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, A. A. Machulin, I. N. Mandarano, A. Mapelli, L. Mari, S. M. Maricic, J. Martoff, C. J. Messina, A. Meyers, P. D. Milincic, R. Mishra-Sharma, S. Monte, A. Morrocchi, M. Mount, B. J. Muratova, V. N. Musico, P. Nania, R. Navrer Agasson, A. Nozdrina, A. O. Oleinik, A. Orsini, M. Ortica, F. Pagani, L. Pallavicini, M. Pandola, L. Pantic, E. Paoloni, E. Pazzona, F. Pelczar, K. Pelliccia, N. Pesudo, V. Picciau, E. Pocar, A. Pordes, S. Poudel, S. S. Pugachev, D. A. Qian, H. Ragusa, F. Razeti, M. Razeto, A. Reinhold, B. Renshaw, A. L. 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, D. A. Shchagin, A. Sheshukov, A. Singh, P. N. Skorokhvatov, M. D. Smirnov, O. Sotnikov, A. Stanford, C. Stracka, S. Suffritti, G. B. Suvorov, Y. Tartaglia, R. Testera, G. Tonazzo, A. Trinchese, P. Unzhakov, E. V. Verducci, M. Vishneva, A. Vogelaar, B. Wada, M. Waldrop, T. J. Wang, H. Wang, Y. Watson, A. W. Westerdale, S. Wojcik, M. M. Wojcik, M. Xiang, X. Xiao, X. Yang, C. Ye, Z. Zhu, C. Zichichi, A. Zuzel, G. DarkSide Collaboration |
Issue Date: | 2018 |
Journal: | PHYSICAL REVIEW LETTERS |
Number: | 121 |
Issue: | 11 |
First Page: | 111303 |
Abstract: | We present new constraints on sub-GeV dark-matter particles scattering off electrons based on 6780.0 kg d of data collected with the DarkSide-50 dual-phase argon time projection chamber. This analysis uses electroluminescence signals due to ionized electrons extracted from the liquid argon target. The detector has a very high trigger probability for these signals, allowing for an analysis threshold of three extracted electrons, or approximately 0.05 keVee. We calculate the expected recoil spectra for dark matter-electron scattering in argon and, under the assumption of momentum-independent scattering, improve upon existing limits from XENON10 for dark-matter particles with masses between 30 and 100 MeV /c2 . |
URI: | http://hdl.handle.net/20.500.12386/27620 |
URL: | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.111303 |
ISSN: | 0031-9007 |
DOI: | 10.1103/PhysRevLett.121.111303 |
Bibcode ADS: | 2018PhRvL.121k1303A |
Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista
|