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Low-Mass Dark Matter Search with the DarkSide-50 Experiment

Authors :
Agnes , P.
Albuquerque , I.F.M.
Alexander , T.
Alton , A.K.
Araujo , G.R.
Asner , D.M.
Ave , M.P.
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.
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.
Di Eusanio , F.
Di Pietro , G.
Dionisi , C.
Downing , M.
Edkins , E.
Empl , A.
Fan , A.
Fiorillo , G.
Fomenko , K.
Franco , D.
Gabriele , F.
Gabrieli , A.
Galbiati , C.
Garcia Abia , P.
Giagu , S.
Giganti , C.
Giovanetti , G.K.
Gorchakov , O.
Goretti , A.M.
Granato , F.
Gromov , M.
Guan , M.
Guardincerri , Y.
Gulino , M.
Hackett , B.R.
Hassanshahi , M.H.
Herner , K.
Hosseini , B.
Hughes , D.
Humble , P.
Hungerford , E.V.
Ianni , Al.
Ianni , An.
Ippolito , V.
James , I.
Johnson , T.N.
Kahn , Y.
Keeter , K.
Kendziora , C.L.
Kochanek , I.
Koh , G.
Korablev , D.
Korga , G.
Kubankin , A.
Kuss , M.
La Commara , M.
Lai , M.
Li , X.
Lisanti , M.
Lissia , M.
Loer , B.
Longo , G.
Ma , Y.
Machado , A.A.
Machulin , I.N.
Mandarano , A.
Mapelli , L.
Mari , S.M.
Maricic , J.
Martoff , C.J.
Messina , A.
Meyers , P.D.
Milincic , R.
Mishra-Sharma , S.
Monte , A.
Morrocchi , M.
Mount , B.J.
Muratova , V.N.
Musico , P.
Nania , R.
Navrer Agasson , A.
Nozdrina , A.O.
Oleinik , A.
Orsini , M.
Ortica , F.
Pagani , L.
Pallavicini , M.
Pandola , L.
Pantic , E.
Paoloni , E.
Pazzona , F.
Pelczar , K.
Pelliccia , N.
Pesudo , V.
Pocar , A.
Pordes , S.
Poudel , S.S.
Pugachev , D.A.
Qian , H.
Ragusa , F.
Razeti , M.
Razeto , A.
Reinhold , B.
Renshaw , A.L.
Rescigno , M.
Romani , A.
Rossi , B.
Rossi , N.
Sablone , D.
Samoylov , O.
Sands , W.
Sanfilippo , S.
Sant , M.
Santorelli , R.
Savarese , C.
Scapparone , E.
Schlitzer , B.
Segreto , E.
Semenov , D.A.
Shchagin , A.
Sheshukov , A.
Singh , P.N.
Skorokhvatov , M.D.
Smirnov , O.
Sotnikov , A.
Stanford , C.
Stracka , S.
Suffritti , G.B.
Suvorov , Y.
Tartaglia , R.
Testera , G.
Tonazzo , A.
Trinchese , P.
Unzhakov , E.V.
Verducci , M.
Vishneva , A.
Vogelaar , B.
Wada , M.
Waldrop , T.J.
Wang , H.
Wang , Y.
Watson , A.W.
Westerdale , S.
Wojcik , M.M.
Xiang , X.
Xiao , X.
Yang , C.
Ye , Z.
Zhu , C.
Zichichi , A.
Zuzel , G.
AstroParticule et Cosmologie ( APC - UMR 7164 )
Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Observatoire de Paris-Université Paris Diderot - Paris 7 ( UPD7 ) -Commissariat à l'énergie atomique et aux énergies alternatives ( CEA )
Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE )
Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS )
DarkSide
Publication Year :
2018
Publisher :
HAL CCSD, 2018.

Abstract

We present the results of a search for dark matter WIMPs in the mass range below 20 GeV/c^2 using a target of low-radioactivity argon. The data were obtained using the DarkSide-50 apparatus at Laboratori Nazionali del Gran Sasso (LNGS). The analysis is based on the ionization signal, for which the DarkSide-50 time projection chamber is fully efficient at 0.1 keVee. The observed rate in the detector at 0.5 keVee is about 1.5 events/keVee/kg/day and is almost entirely accounted for by known background sources. We obtain a 90% C.L. exclusion limit above 1.8 GeV/c^2 for the spin-independent cross section of dark matter WIMPs on nucleons, extending the exclusion region for dark matter below previous limits in the range 1.8-6 GeV/c^2.

Subjects

Subjects :
dark matter: scattering
background
[ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph]
argon
ionization
dark matter: direct detection
WIMP: dark matter
time projection chamber
Gran Sasso

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.od......3379..ea87c3aeefe6575209eb88d9a685cac5

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Authors Abstract Subjects Details