Search for Dark-Matter-Nucleon Interactions via Migdal Effect with DarkSide-50
Journal
Date Issued
2023
Author(s)
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.
•
•
Chashin, S.
•
Chepurnov, A.
•
Cicalò, C.
•
Covone, G.
•
D'Angelo, D.
•
Davini, S.
•
De Candia, A.
•
De Cecco, S.
•
De Filippis, 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.
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/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.
Volume
130
Issue
10
Start page
101001
Issn Identifier
0031-9007
Ads BibCode
2023PhRvL.130j1001A
Rights
open.access
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