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Constraints on Sub-GeV Dark-Matter-Electron Scattering from the DarkSide-50 Experiment.
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, S; 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.
Afiliação
  • Agnes P; Department of Physics, University of Houston, Houston, Texas 77204, USA.
  • Albuquerque IFM; Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil.
  • Alexander T; Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
  • Alton AK; Physics Department, Augustana University, Sioux Falls, South Dakota 57197, USA.
  • Araujo GR; Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil.
  • Asner DM; Brookhaven National Laboratory, Upton, New York 11973, USA.
  • Ave M; Instituto de Física, Universidade de São Paulo, São Paulo 05508-090, Brazil.
  • Back HO; Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
  • Baldin B; Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
  • Batignani G; INFN Pisa, Pisa 56127, Italy.
  • Biery K; Physics Department, Università degli Studi di Pisa, Pisa 56127, Italy.
  • Bocci V; Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA.
  • Bonfini G; INFN Sezione di Roma, Roma 00185, Italy.
  • Bonivento W; INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy.
  • Bottino B; INFN Cagliari, Cagliari 09042, Italy.
  • Budano F; Physics Department, Università degli Studi di Genova, Genova 16146, Italy.
  • Bussino S; INFN Genova, Genova 16146, Italy.
  • Cadeddu M; INFN Roma Tre, Roma 00146, Italy.
  • Cadoni M; Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy.
  • Calaprice F; INFN Roma Tre, Roma 00146, Italy.
  • Caminata A; Mathematics and Physics Department, Università degli Studi Roma Tre, Roma 00146, Italy.
  • Canci N; INFN Cagliari, Cagliari 09042, Italy.
  • Candela A; Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy.
  • Caravati M; INFN Cagliari, Cagliari 09042, Italy.
  • Cariello M; Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy.
  • Carlini M; Physics Department, Princeton University, Princeton, New Jersey 08544, USA.
  • Carpinelli M; INFN Genova, Genova 16146, Italy.
  • Catalanotti S; Department of Physics, University of Houston, Houston, Texas 77204, USA.
  • Cataudella V; INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy.
  • Cavalcante P; INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy.
  • Cavuoti S; INFN Cagliari, Cagliari 09042, Italy.
  • Cereseto R; Physics Department, Università degli Studi di Cagliari, Cagliari 09042, Italy.
  • Chepurnov A; INFN Genova, Genova 16146, Italy.
  • Cicalò C; INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy.
  • Cifarelli L; Chemistry and Pharmacy Department, Università degli Studi di Sassari, Sassari 07100, Italy.
  • Cocco AG; INFN Laboratori Nazionali del Sud, Catania 95123, Italy.
  • Covone G; Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy.
  • D'Angelo D; INFN Napoli, Napoli 80126, Italy.
  • D'Incecco M; Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy.
  • D'Urso D; INFN Napoli, Napoli 80126, Italy.
  • Davini S; INFN Laboratori Nazionali del Gran Sasso, Assergi (AQ) 67100, Italy.
  • De Candia A; Virginia Tech, Blacksburg, Virginia 24061, USA.
  • De Cecco S; Physics Department, Università degli Studi "Federico II" di Napoli, Napoli 80126, Italy.
  • De Deo M; INFN Napoli, Napoli 80126, Italy.
  • De Filippis G; INFN Genova, Genova 16146, Italy.
  • De Rosa G; Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119234, Russia.
  • De Vincenzi M; INFN Cagliari, Cagliari 09042, Italy.
  • Demontis P; Physics Department, Università degli Studi di Bologna, Bologna 40126, Italy.
  • Derbin AV; INFN Bologna, Bologna 40126, Italy.
  • Devoto A; INFN Napoli, Napoli 80126, Italy.
Phys Rev Lett ; 121(11): 111303, 2018 Sep 14.
Article em En | MEDLINE | ID: mdl-30265123
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/c^{2}.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2018 Tipo de documento: Article