%0 Journal Article %T Search for dark-matter–Nucleon interactions via Migdal effect with DarkSide-50 %+ Royal Holloway [University of London] (RHUL) %+ Universidade de São Paulo = University of São Paulo (USP) %+ Pacific Northwest National Laboratory (PNNL) %+ University of South Dakota [Vermillion] (USD) %+ Istituto Nazionale di Fisica Nucleare [Pisa] (INFN) %+ Fermi National Accelerator Laboratory (Fermilab) %+ Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1] (INFN) %+ Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari (INFN, Sezione di Cagliari) %+ Università degli studi di Genova = University of Genoa (UniGe) %+ Università degli Studi di Cagliari = University of Cagliari (UniCa) %+ Princeton University %+ Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova) %+ King‘s College London %+ Laboratori Nazionali del Gran Sasso (LNGS) %+ University of Naples Federico II = Università degli studi di Napoli Federico II %+ Virginia Tech [Blacksburg] %+ D.V. Skobeltsyn Institute of Nuclear Physics (SINP) %+ Università degli Studi di Milano = University of Milan (UNIMI) %+ Saint Petersburg Nuclear Physics Institute RAS %+ University of Massachusetts System (UMASS) %+ Università degli Studi di Sassari = University of Sassari [Sassari] (UNISS) %+ AstroParticule et Cosmologie (APC (UMR_7164)) %+ Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)) %+ Department of Physics, Princeton University (DPPU) %+ INFN Frascati %+ Institute of Molecular Genetics of National Research Centre «Kurchatov Institute» [Moscow, Russia] %+ Institute of High Energy Physics [Beijing] (IHEP) %+ Università degli Studi di Enna " KORE " = Kore University of Enna %+ Centre de Physique des Particules de Marseille (CPPM) %+ University of Houston [Clear Lake] %+ Black Hills State University %+ Nicolaus Copernicus Astronomical Cente (AstroCeNT) %+ Joint Institute for Nuclear Research (JINR) %+ University of Houston %+ Belgorod National Research University %+ University of California (UC) %+ University of Hawai'i [Hilo] %+ Laboratoire National Henri Becquerel (LNHB) %+ Università degli Studi di Perugia = University of Perugia (UNIPG) %+ Istituto Nazionale di Fisica Nucleare, Sezione di Catania (INFN) %+ University of Massachusetts [Amherst] (UMass Amherst) %+ University of California [Davis] (UC Davis) %+ University of Manchester [Manchester] %+ Università degli Studi di Roma Tor Vergata [Roma] %+ Uniwersytet Jagielloński w Krakowie = Jagiellonian University (UJ) %A Agnes, P. %A Albuquerque, I. F. M. %A Alexander, T. %A Alton, A. K. %A Ave, M. %A Back, H. O. %A Batignani, G. %A Biery, K. %A Bocci, V. %A Bonivento, W. M. %A Bottino, B. %A Bussino, S. %A Cadeddu, M. %A Cadoni, M. %A Calaprice, F. %A Caminata, A. %A Campos, M. D. %A Canci, N. %A Caravati, M. %A Cargioli, N. %A Cariello, M. %A Carlini, M. %A Cataudella, V. %A Cavalcante, P. %A Cavuoti, S. %A Chashin, S. %A Chepurnov, A. %A Cicalò, C. %A Covone, G. %A D’angelo, D. %A Davini, S. %A de Candia, A. %A De Cecco, S. %A de Filippis, G. %A De Rosa, G. %A Derbin, A. V. %A Devoto, A. %A D’incecco, M. %A Dionisi, C. %A Dordei, F. %A Downing, M. %A D’urso, D. %A Fiorillo, G. %A Franco, D. %A Gabriele, F. %A Galbiati, C. %A Ghiano, C. %A Giganti, C. %A Giovanetti, G. K. %A Goretti, A. M. %A Grilli Di Cortona, G. %A Grobov, A. %A Gromov, M. %A Guan, M. %A Gulino, M. %A Hackett, B. R. %A Herner, K. %A Hessel, T. %A Hosseini, B. %A Hubaut, F. %A Hungerford, E. V. %A Ianni, An. %A Ippolito, V. %A Keeter, K. %A Kendziora, C. L. %A Kimura, M. %A Kochanek, I. %A Korablev, D. %A Korga, G. %A Kubankin, A. %A Kuss, M. %A La Commara, M. %A Lai, M. %A Li, X. %A Lissia, M. %A Longo, G. %A Lychagina, O. %A Machulin, I. N. %A Mapelli, L. P. %A Mari, S. M. %A Maricic, J. %A Messina, A. %A Milincic, R. %A Monroe, J. %A Morrocchi, M. %A Mougeot, Xavier %A Muratova, V. N. %A Musico, P. %A Nozdrina, A. O. %A Oleinik, A. %A Ortica, F. %A Pagani, L. %A Pallavicini, M. %A Pandola, L. %A Pantic, E. %A Paoloni, E. %A Pelczar, K. %A Pelliccia, N. %A Piacentini, S. %A Pocar, A. %A Poehlmann, D. M. %A Pordes, S. %A Poudel, S. S. %A Pralavorio, P. %A Price, D. D. %A Ragusa, F. %A Razeti, M. %A Razeto, A. %A Renshaw, A. L. %A Rescigno, M. %A Rode, J. %A Romani, A. %A Sablone, D. %A Samoylov, O. %A Sands, W. %A Sanfilippo, S. %A Sandford, E. %A Savarese, C. %A Schlitzer, B. %A Semenov, D. A. %A Shchagin, A. %A Sheshukov, A. %A Skorokhvatov, M. D. %A Smirnov, O. %A Sotnikov, A. %A Stracka, S. %A Suvorov, Y. %A Tartaglia, R. %A Testera, G. %A Tonazzo, A. %A Unzhakov, E. V. %A Vishneva, A. %A Vogelaar, R. B. %A Wada, M. %A Wang, H. %A Wang, Y. %A Westerdale, S. %A Wojcik, M. M. %A Xiao, X. %A Yang, C. %A Zuzel, G. %A Fairbairn, M. %< avec comité de lecture %@ 0031-9007 %J Physical Review Letters %I American Physical Society %V 130 %N 10 %P 101001 %8 2023-03-06 %D 2023 %Z 2207.11967 %R 10.1103/PhysRevLett.130.101001 %K electron final state %K dark matter direct detection %K dark matter mass %K particle interaction %K ionization %K Dark matter %K experimental results %K instrumentation %K electrons %K radioactivity %K ionizing radiation %K signal processing %Z Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] %Z Physics [physics]/High Energy Physics - Experiment [hep-ex]Journal articles %X Dark matter elastic scattering off nuclei can result in the excitation and ionization of the recoiling atom through the so-called Migdal effect. The energy deposition from the ionization electron adds to the energy deposited by the recoiling nuclear system and allows for the detection of interactions of sub-GeV/c2 mass dark matter. We present new constraints for sub-GeV/c2 dark matter using the dual-phase liquid argon time projection chamber of the DarkSide-50 experiment with an exposure of (12 306±184)  kg d. The analysis is based on the ionization signal alone and significantly enhances the sensitivity of DarkSide-50, enabling sensitivity to dark matter with masses down to 40  MeV/c2. Furthermore, it sets the most stringent upper limit on the spin independent dark matter nucleon cross section for masses below 3.6  GeV/c2. %G English %Z DarkSide Collaboration %2 https://cea.hal.science/cea-04036877/document %2 https://cea.hal.science/cea-04036877/file/OpenAccess_PAgnes_PhysRevLett.130.101001.pdf %L cea-04036877 %U https://cea.hal.science/cea-04036877 %~ IN2P3 %~ OBSPM %~ CEA %~ CPPM %~ LPNHE %~ APC %~ CNRS %~ UNIV-AMU %~ DRT %~ CEA-UPSAY %~ PSL %~ UNIV-PARIS-SACLAY %~ LIST %~ SORBONNE-UNIVERSITE %~ SORBONNE-UNIV %~ SU-SCIENCES %~ DM2I %~ UNIV-PARIS %~ UNIVERSITE-PARIS %~ UP-SCIENCES %~ OBSPM-PSL %~ UNIVERSITE-PARIS-SACLAY %~ SU-TI %~ GS-COMPUTER-SCIENCE %~ ALLIANCE-SU %~ LPNHE-2 %~ DIN