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. 2023 Mar 10;130(10):101002.
doi: 10.1103/PhysRevLett.130.101002.

Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50

P Agnes  1 I F M Albuquerque  2 T Alexander  3 A K Alton  4 M Ave  2 H O Back  3 G Batignani  5   6 K Biery  7 V Bocci  8 W M Bonivento  9 B Bottino  10   11 S Bussino  12   13 M Cadeddu  9 M Cadoni  9   14 F Calaprice  15 A Caminata  11 M D Campos  16 N Canci  17 M Caravati  9 N Cargioli  9 M Cariello  11 M Carlini  17   18 V Cataudella  19   20 P Cavalcante  17   21 S Cavuoti  19   20 S Chashin  22 A Chepurnov  22 C Cicalò  9 G Covone  19   20 D D'Angelo  23   24 S Davini  11 A De Candia  19   20 S De Cecco  8   25 G De Filippis  19   20 G De Rosa  19   20 A V Derbin  26 A Devoto  9   14 M D'Incecco  17 C Dionisi  8   25 F Dordei  9 M Downing  27 D D'Urso  28   29 G Fiorillo  19   20 D Franco  30 F Gabriele  9 C Galbiati  15   17   18 C Ghiano  17 C Giganti  31 G K Giovanetti  15 A M Goretti  17 G Grilli di Cortona  32 A Grobov  33   34 M Gromov  22   35 M Guan  36 M Gulino  29   37 B R Hackett  3 K Herner  7 T Hessel  30 B Hosseini  9 F Hubaut  38 E V Hungerford  39 An Ianni  15   17 V Ippolito  8 K Keeter  40 C L Kendziora  7 M Kimura  41 I Kochanek  17 D Korablev  35 G Korga  17   39 A Kubankin  42 M Kuss  5 M La Commara  19   20 M Lai  9   14 X Li  15 M Lissia  9 G Longo  19   20 O Lychagina  22   35 I N Machulin  33   34 L P Mapelli  43 S M Mari  12   13 J Maricic  44 A Messina  8   25 R Milincic  44 J Monroe  1 M Morrocchi  5   6 X Mougeot  45 V N Muratova  26 P Musico  11 A O Nozdrina  33   34 A Oleinik  42 F Ortica  46   47 L Pagani  48 M Pallavicini  10   11 L Pandola  29 E Pantic  48 E Paoloni  5   6 K Pelczar  17   49 N Pelliccia  46   47 S Piacentini  8 A Pocar  27 D M Poehlmann  48 S Pordes  7 S S Poudel  39 P Pralavorio  38 D D Price  50 F Ragusa  23   24 M Razeti  9 A Razeto  17 A L Renshaw  39 M Rescigno  8 J Rode  30   31 A Romani  46   47 D Sablone  15   17 O Samoylov  35 W Sands  15 S Sanfilippo  12   13 E Sandford  50 C Savarese  15 B Schlitzer  48 D A Semenov  26 A Shchagin  42 A Sheshukov  35 M D Skorokhvatov  33   34 O Smirnov  35 A Sotnikov  35 S Stracka  5 Y Suvorov  19   20   33 R Tartaglia  17 G Testera  11 A Tonazzo  30 E V Unzhakov  26 A Vishneva  35 R B Vogelaar  21 M Wada  14   41 H Wang  43 Y Wang  36   43 S Westerdale  9   15 M M Wojcik  49 X Xiao  43 C Yang  36 G Zuzel  49 DarkSide Collaboration
Affiliations
Free article

Search for Dark Matter Particle Interactions with Electron Final States with DarkSide-50

P Agnes et al. Phys Rev Lett. .
Free article

Abstract

We present a search for dark matter particles with sub-GeV/c^{2} masses whose interactions have final state electrons using the DarkSide-50 experiment's (12 306±184) kg d low-radioactivity liquid argon exposure. By analyzing the ionization signals, we exclude new parameter space for the dark matter-electron cross section σ[over ¯]_{e}, the axioelectric coupling constant g_{Ae}, and the dark photon kinetic mixing parameter κ. We also set the first dark matter direct-detection constraints on the mixing angle |U_{e4}|^{2} for keV/c^{2} sterile neutrinos.

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