The DarkSide-50 outer detectors

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Darkside Collaboration, The^45 ; Westerdale, S.^3 ; Agnes, P.^1 ; Agostino, L.^2 ; Albuquerque, I.F.M.^3,4 ; Alexander, T.^5,6 ; Alton, A.K.^7 ; Arisaka, K.^8 ; Back, H.O.^3,9 ; Baldin, B.^6 ; Biery, K.^6 ; Bonfini, G.^10 ; Bossa, M.^11 ; Bottino, B.^12,13 ; Brigatti, A.^14 ; Brodsky, J.^3 ; Budano, F.^15,16 ; Bussino, S.^15,16 ; Cadeddu, M.^17,18 ; Cadonati, L.^5 ; Cadoni, M.^17,18 ; Calaprice, F.^3 ; Canci, N.^10,19 ; Candela, A.^10 ; Cao, H.^3 ; Cariello, M.^13 ; Carlini, M.^10 ; Catalanotti, S.^20,21 ; Cavalcante, P.^10,22 ; Chepurnov, A.^23 ; Cocco, A.G.^21 ; Covone, G.^20,21 ; D'Angelo, D.^14,24 ; D'Incecco, M.^10 ; Davini, S.^10,11 ; De Cecco, S.^2 ; De Deo, M.^10 ; De Vincenzi, M.^15,16 ; Derbin, A.^25 ; Devoto, A.^17,18 ; Di Eusanio, F.^3 ; Di Pietro, G.^10,14 ; Edkins, E.^26 ; Empl, A.^19 ; Fan, A.^8 ; Fiorillo, G.^20,21 ; Fomenko, K.^27 ; Foster, G.^5,6 ; Franco, D.^1 ; Gabriele, F.^10 ; Galbiati, C.^3,10 ; Giganti, C.^2 ; Goretti, A.M.^10 ; Granato, F.^20,28 ; Grandi, L.^29 ; Gromov, M.^23 ; Guan, M.^30 ; Guardincerri, Y.^6 ; Hackett, B.R.^26 ; Herner, K.R.^6 ; Hungerford, E.V.^19 ; Aldo, Ianni^10,31 ; Andrea, Ianni^3 ; James, I.^15,16 ; Jollet, C.^32 ; Keeter, K.^33 ; Kendziora, C.L.^6 ; Kobychev, V.^34 ; Koh, G.^3 ; Korablev, D.^27 ; Korga, G.^10,19 ; Kubankin, A.^35 ; Li, X.^3 ; Lissia, M.^18 ; Lombardi, P.^14 ; Luitz, S.^36 ; Ma, Y.^30 ; Machulin, I.N.^37,38 ; Mandarano, A.^10,11 ; Mari, S.M.^15,16 ; Maricic, J.^26 ; Marini, L.^12,13 ; Martoff, C.J.^28 ; Meregaglia, A.^32 ; Meyers, P.D.^3 ; Miletic, T.^28 ; Milincic, R.^26 ; Montanari, D.^6 ; Monte, A.^5 ; Montuschi, M.^10 ; Monzani, M.E.^36 ; Mosteiro, P.^3 ; Mount, B.J.^33 ; Muratova, V.N.^25 ; Musico, P.^13 ; Napolitano, J.^28 ; Orsini, M.^10 ; Ortica, F.^39,40 ; Pagani, L.^12,13 ; Pallavicini, M.^12,13 ; Pantic, E.^41 ; Parmeggiano, S.^14 ; Pelczar, K.^42 ; Pelliccia, N.^39,40 ; Perasso, S.^1 ; Pocar, A.^3,5 ; Pordes, S.^6 ; Pugachev, D.A.^37,38 ; Qian, H.^3 ; Randle, K.^5 ; Ranucci, G.^14 ; Razeto, A.^3,10 ; Reinhold, B.^26 ; Renshaw, A.L.^8,19 ; Romani, A.^39,40 ; Rossi, B.^3,21 ; Rossi, N.^10 ; Rountree, S.D.^22 ; Sablone, D.^10 ; Saggese, P.^14 ; Saldanha, R.^29 ; Sands, W.^3 ; Sangiorgio, S.^43 ; Savarese, C.^10,11 ; Segreto, E.^44 ; Semenov, D.A.^25 ; Shields, E.^3 ; Singh, P.N.^19 ; Dskorokhvatov, M.^37,38 ; Smirnov, O.^27 ; Sotnikov, A.^27 ; Stanford, C.^3 ; Suvorov, Y.^8,10,37 ; Tartaglia, R.^10 ; Tatarowicz, J.^28 ; Testera, G.^13 ; Tonazzo, A.^1 ; Trinchese, P.^20 ; Unzhakov, E.V.^25 ; Vishneva, A.^27 ; Vogelaar, B.^22 ; Wada, M.^3 ; Walker, S.^20,21 ; Wang, H.^8 ; Wang, Y.^8,30,45 ; Watson, A.W.^28 ; Wilhelmi, J.^28 ; Wojcik, M.M.^42 ; Xiang, X.^3 ; Xu, J.^3 ; Yang, C.^30 ; Yoo, J.^6 ; Zavatarelli, S.^13 ; Zec, A.^5 ; Zhong, W.^30 ; Zhu, C.^3 ; Zuzel, G.^42

APC, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Obs de Paris, Sorbonne Paris Cité, 75205 Paris, France^1

LPNHE Paris, Université Pierre et Marie Curie, Université Paris Diderot, CNRS/IN2P3, Paris

75252, France^2

Department of Physics, Princeton University, Princeton

NJ

08544, United States^3

Instituto de Física, Universitade de São Paulo, Sao Paulo

05508-090, Brazil^4

Amherst Center for Fundamental Interactions, Department of Physics, University of Massachusetts, Amherst

MA

01003, United States^5

Fermi National Accelerator Laboratory, Batavia

IL

60510, United States^6

Department of Physics, Augustana University, Sioux Falls

SD

57197, United States^7

Department of Physics and Astronomy, University of California, Los Angeles

CA

90095, United States^8

Pacific Northwest National Laboratory, Richland

WA

99354, United States

(10) Laboratori Nazionali Del Gran Sasso, Assergi AQ

67010, Italy

(11) Gran Sasso Science Institute, L'AQUILA

67100, Italy

(12) Department of Physics, Università degli Studi, Genova

16146, Italy

(13) Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Genova

16146, Italy

(14) Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Milano

20133, Italy

(15) Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, Roma

00146, Italy

(16) Department of Physics and Mathematics, Università degli Studi Roma Tre, Roma

00146, Italy

(17) Department of Physics, Università degli Studi, Cagliari

09042, Italy

(18) Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari, Cagliari

09042, Italy

(19) Department of Physics, University of Houston, Houston

TX

77204, United States

(20) Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Napoli

80126, Italy

(21) Department of Physics, Università degli Studi Federico II, Napoli

80126, Italy

(22) Department of Physics, Virginia Tech, Blacksburg

VA

24061, United States

(23) Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow

119991, Russia

(24) Department of Physics, Università degli Studi, Milano

20133, Italy

(25) St. Petersburg Nuclear Physics Institute NRC, Kurchatov Institute, Gatchina

188350, Russia

(26) Department of Physics and Astronomy, University of Hawai'i, Honolulu

HI

96822, United States

(27) Joint Institute for Nuclear Research, Dubna

141980, Russia

(28) Department of Physics, Temple University, Philadelphia

PA

19122, United States

(29) Kavli Institute, Enrico Fermi Institute, Dept. of Physics, University of Chicago, Chicago

IL

60637, United States

(30) Institute for High Energy Physics, Beijing

100049, China

(31) Laboratorio Subterráneo de Canfranc, Canfranc Estación, E-22880, Spain

(32) IPHC, 19 Université de Strasbourg, CNRS/IN2P3, Strasbourg

67037, France

(33) School of Natural Sciences, Black Hills State University, Spearflsh

SD

57799, United States

(34) Institute for National Research, National Academy of Sciences of Ukraine, Kiev

03680, Ukraine

(35) Radiation Physics Laboratory, Belgorod National Research University, Belgorod

308007, Russia

(36) SLAC National Accelerator Laboratory, Menlo Park

CA

94025, United States

(37) National Research Centre Kurchatov Institute, Moscow

123182, Russia

(38) National Research Nuclear University MEPhI, Moscow

115409, Russia

(39) Department of Chemistry, Biology and Biotechnology, Università degli Studi, Perugia

06123, Italy

(40) Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, Perugia

06123, Italy

(41) Department of Physics, University of California, Davis

CA

95616, United States

(42) Smoluchowski Institute of Physics, Jagiellonian University, Krakow

30059, Poland

(43) Lawrence Livermore National Laboratory, Livermore

CA

94550, United States

(44) Institute of Physics Gleb Wataghin Universidade Estadual de Campinas, São Paulo

13083-859, Brazil

(45) School of Physics, University of Chinese, Academy of Sciences, Beijing

100049, China^9

关键词: Dark matter detection;    Gran Sasso National Laboratory;    In-situ measurement;    Liquid scintillator;    Time projection chambers;    Water Cherenkov detectors;    Wavelength shifter;    Weakly interacting massive particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/4/042062/pdf
DOI  :  10.1088/1742-6596/718/4/042062

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

DarkSide-50 is a dark matter detection experiment searching for Weakly Interacting Massive Particles (WIMPs), in Gran Sasso National Laboratory. For experiments like DarkSide-50, neutrons are one of the primary backgrounds that can mimic WIMP signals. The experiment consists of three nested detectors: a liquid argon time projection chamber surrounded by two outer detectors. The outermost detector is a 10 m by 11 m cylindrical water Cherenkov detector with 80 PMTs, designed to provide shielding and muon vetoing. Inside the water Cherenkov detector is the 4 m diameter spherical boron-loaded liquid scintillator veto, with a cocktail of pseudocumene, trimethyl borate, and PPO wavelength shifter, designed to provide shielding, neutron vetoing, and in situ measurements of the TPC backgrounds. We present design and performance details of the DarkSide-50 outer detectors.