: 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/c^{2} mass dark matter. We present new constraints for sub-GeV/c^{2} 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/c^{2}. Furthermore, it sets the most stringent upper limit on the spin independent dark matter nucleon cross section for masses below 3.6  GeV/c^{2}.

Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50 / Agnes, P; Albuquerque, I F M; Alexander, T; Alton, A K; Ave, M; Back, H O; Batignani, G; Biery, K; Bocci, V; Bonivento, W M; Bottino, B; Bussino, S; Cadeddu, M; Cadoni, M; Calaprice, F; Caminata, A; Campos, M D; Canci, N; Caravati, M; Cargioli, N; Cariello, M; Carlini, M; Cataudella, V; Cavalcante, P; Cavuoti, S; Chashin, S; Chepurnov, A; Cicalò, C; Covone, G; D'Angelo, D; Davini, S; De Candia, A; De Cecco, S; De Filippis, G; De Rosa, G; Derbin, A V; Devoto, A; D'Incecco, M; Dionisi, C; Dordei, F; Downing, M; D'Urso, D; Fairbairn, M; Fiorillo, G; Franco, D; Gabriele, F; Galbiati, C; Ghiano, C; Giganti, C; Giovanetti, G K; Goretti, A M; Grilli di Cortona, G; Grobov, A; Gromov, M; Guan, M; Gulino, M; Hackett, B R; Herner, K; Hessel, T; Hosseini, B; Hubaut, F; Hungerford, E V; Ianni, An; Ippolito, V; Keeter, K; Kendziora, C L; Kimura, M; Kochanek, I; Korablev, D; Korga, G; Kubankin, A; Kuss, M; La Commara, M; Lai, M; Li, X; Lissia, M; Longo, G; Lychagina, O; Machulin, I N; Mapelli, L P; Mari, S M; Maricic, J; Messina, A; Milincic, R; Monroe, J; Morrocchi, M; Mougeot, X; Muratova, V N; Musico, P; Nozdrina, A O; Oleinik, A; Ortica, F; Pagani, L; Pallavicini, M; Pandola, L; Pantic, E; Paoloni, E; Pelczar, K; Pelliccia, N; Piacentini, S; Pocar, A; Poehlmann, D M; Pordes, S; Poudel, S S; Pralavorio, P; Price, D D; Ragusa, F; Razeti, M; Razeto, A; Renshaw, A L; Rescigno, M; Rode, J; Romani, A; Sablone, D; Samoylov, O; Sandford, E; Sands, W; Sanfilippo, S; Savarese, C; Schlitzer, B; Semenov, D A; Shchagin, A; Sheshukov, A; Skorokhvatov, M D; Smirnov, O; Sotnikov, A; Stracka, S; Suvorov, Y; Tartaglia, R; Testera, G; Tonazzo, A; Unzhakov, E V; Vishneva, A; Vogelaar, R B; Wada, M; Wang, H; Wang, Y; Westerdale, S; Wojcik, M M; Xiao, X; Yang, C; Zuzel, G. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 130:10(2023), p. 101001. [10.1103/PhysRevLett.130.101001]

Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50

D'Urso, D;
2023-01-01

Abstract

: 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/c^{2} mass dark matter. We present new constraints for sub-GeV/c^{2} 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/c^{2}. Furthermore, it sets the most stringent upper limit on the spin independent dark matter nucleon cross section for masses below 3.6  GeV/c^{2}.
2023
Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50 / Agnes, P; Albuquerque, I F M; Alexander, T; Alton, A K; Ave, M; Back, H O; Batignani, G; Biery, K; Bocci, V; Bonivento, W M; Bottino, B; Bussino, S; Cadeddu, M; Cadoni, M; Calaprice, F; Caminata, A; Campos, M D; Canci, N; Caravati, M; Cargioli, N; Cariello, M; Carlini, M; Cataudella, V; Cavalcante, P; Cavuoti, S; Chashin, S; Chepurnov, A; Cicalò, C; Covone, G; D'Angelo, D; Davini, S; De Candia, A; De Cecco, S; De Filippis, G; De Rosa, G; Derbin, A V; Devoto, A; D'Incecco, M; Dionisi, C; Dordei, F; Downing, M; D'Urso, D; Fairbairn, M; Fiorillo, G; Franco, D; Gabriele, F; Galbiati, C; Ghiano, C; Giganti, C; Giovanetti, G K; Goretti, A M; Grilli di Cortona, G; Grobov, A; Gromov, M; Guan, M; Gulino, M; Hackett, B R; Herner, K; Hessel, T; Hosseini, B; Hubaut, F; Hungerford, E V; Ianni, An; Ippolito, V; Keeter, K; Kendziora, C L; Kimura, M; Kochanek, I; Korablev, D; Korga, G; Kubankin, A; Kuss, M; La Commara, M; Lai, M; Li, X; Lissia, M; Longo, G; Lychagina, O; Machulin, I N; Mapelli, L P; Mari, S M; Maricic, J; Messina, A; Milincic, R; Monroe, J; Morrocchi, M; Mougeot, X; Muratova, V N; Musico, P; Nozdrina, A O; Oleinik, A; Ortica, F; Pagani, L; Pallavicini, M; Pandola, L; Pantic, E; Paoloni, E; Pelczar, K; Pelliccia, N; Piacentini, S; Pocar, A; Poehlmann, D M; Pordes, S; Poudel, S S; Pralavorio, P; Price, D D; Ragusa, F; Razeti, M; Razeto, A; Renshaw, A L; Rescigno, M; Rode, J; Romani, A; Sablone, D; Samoylov, O; Sandford, E; Sands, W; Sanfilippo, S; Savarese, C; Schlitzer, B; Semenov, D A; Shchagin, A; Sheshukov, A; Skorokhvatov, M D; Smirnov, O; Sotnikov, A; Stracka, S; Suvorov, Y; Tartaglia, R; Testera, G; Tonazzo, A; Unzhakov, E V; Vishneva, A; Vogelaar, R B; Wada, M; Wang, H; Wang, Y; Westerdale, S; Wojcik, M M; Xiao, X; Yang, C; Zuzel, G. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 130:10(2023), p. 101001. [10.1103/PhysRevLett.130.101001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/309413
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