First results from the DarkSide-50 dark matter experiment at Laboratori Nazionali del Gran Sasso

被引：217

作者：

Agnes, P. ^{[1
]}

Alexander, T. ^{[1
]}

Alton, A. ^{[2
,22
]}

Arisaka, K. ^{[37
]}

Back, H. O. ^{[30
]}

Baldin, B. ^{[9
]}

Biery, K. ^{[9
]}

Bonfini, G. ^{[20
]}

Bossa, M. ^{[12
]}

Brigatti, A. ^{[22
,23
]}

Brodsky, J. ^{[30
]}

Budano, F. ^{[31
,32
]}

Cadonati, L. ^{[1
]}

Calaprice, F. ^{[30
]}

Canci, N. ^{[37
]}

Candela, A. ^{[20
]}

Cao, H. ^{[30
]}

Cariello, M. ^{[10
,11
]}

Cavalcante, P. ^{[20
]}

Chavarria, A. ^{[5
,6
]}

Chepurnov, A. ^{[24
]}

Cocco, A. G. ^{[25
,26
]}

Crippa, L. ^{[22
,23
]}

D'Angelo, D. ^{[22
,23
]}

D'Incecco, M. ^{[20
]}

Davini, S. ^{[14
]}

De Deo, M. ^{[20
]}

Derbin, A. ^{[27
]}

Devoto, A. ^{[3
,4
]}

Di Eusanio, F. ^{[30
]}

Di Pietro, G. ^{[22
,23
]}

Edkins, E. ^{[13
]}

Empl, A. ^{[14
]}

Fan, A. ^{[37
]}

Fiorillo, G. ^{[25
,26
]}

Fomenko, K. ^{[8
]}

Forster, G.

Franco, D. ^{[1
]}

Gabriele, F. ^{[20
]}

Galbiati, C. ^{[30
]}

Goretti, A. ^{[30
]}

Grandi, L. ^{[5
,6
]}

Gromov, M. ^{[24
]}

Guan, M. Y. ^{[15
]}

Guardincerri, Y. ^{[9
]}

Hackett, B. ^{[13
]}

Herner, K. ^{[9
]}

Hungerford, E. V. ^{[14
]}

Ianni, Al. ^{[20
]}

Ianni, An. ^{[30
]}

机构：

[1] Univ Paris Diderot, Sorbonne Paris Cite, APC, F-75205 Paris, France

[2] Augustana Coll, Dept Phys & Astron, Sioux Falls, SD 57197 USA

[3] Univ Cagliari, Dept Phys, I-09042 Cagliari, Italy

[4] Ist Nazl Fis Nucl, I-09042 Cagliari, Italy

[5] Univ Chicago, Enrico Fermi Inst, Kavli Inst, Chicago, IL 60637 USA

[6] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[7] Black Hills State Univ, Sch Nat Sci, Spearfish, SD 57799 USA

[8] Joint Nucl Res Inst, Dubna 141980, Russia

[9] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[10] Univ Genoa, Dept Phys, I-16146 Genoa, Italy

[11] Ist Nazl Fis Nucl, I-16146 Genoa, Italy

[12] Gran Sasso Sci Inst, I-67100 Laquila, Italy

[13] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA

[14] Univ Houston, Dept Phys, Houston, TX 77204 USA

[15] Inst High Energy Phys, Beijing 100049, Peoples R China

[16] Jagiellonian Univ, Smoluchowski Inst Phys, PL-30059 Krakow, Poland

[17] Natl Acad Sci Ukraine, Nucl Res Inst, UA-03680 Kiev, Ukraine

[18] Natl Res Ctr Kurchatov Inst, Moscow 123182, Russia

[19] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[20] Lab Nazl Gran Sasso, I-67010 Assergi, AQ, Italy

[21] Natl Res Nucl Univ MEPhI, Moscow Engn Phys Inst, Moscow 115409, Russia

[22] Univ Milan, Dept Phys, I-20133 Milan, Italy

[23] Ist Nazl Fis Nucl, I-20133 Milan, Italy

[24] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia

[25] Univ Naples Federico II, Dept Phys, I-80126 Naples, Italy

[26] Ist Nazl Fis Nucl, I-80126 Naples, Italy

[27] St Petersburg Nucl Phys Inst, Gatchina 188350, Russia

[28] Univ Perugia, Chem Biol & Biotechnol Dept, I-06123 Perugia, Italy

[29] Ist Nazl Fis Nucl, I-06123 Perugia, Italy

[30] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[31] Univ Rome Tre, Dept Phys, I-00146 Rome, Italy

[32] Ist Nazl Fis Nucl, I-00146 Rome, Italy

[33] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[34] Univ Strasbourg, CNRS, IN2P3, IPHC, F-67037 Strasbourg, France

[35] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA

[36] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[37] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[38] Univ Massachusetts, Amherst Ctr Fundamental Interact, Amherst, MA 01003 USA

[39] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[40] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA

来源：

PHYSICS LETTERS B | 2015年 / 743卷

基金：

美国国家科学基金会;

关键词：

Dark matter; WIMP; Noble liquid detectors; Low-background detectors; Liquid scintillators; LIQUID ARGON; SCINTILLATOR; SEARCH; LUMINESCENCE; ELECTRONS; DETECTOR; KRYPTON; AR-39; DECAY;

D O I：

10.1016/j.physletb.2015.03.012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the first results of DarkSide-50, a direct search for dark matter operating in the underground Laboratori Nazionali del Gran Sasso (LNGS) and searching for the rare nuclear recoils possibly induced by weakly interacting massive particles (WIMPs). The dark matter detector is a Liquid Argon Time Projection Chamber with a (46.4 +/- 0.7) kg active mass, operated inside a 30 t organic liquid scintillator neutron veto, which is in turn installed at the center of a 1 kt water Cherenkov veto for the residual flux of cosmic rays. We report here the null results of a dark matter search for a (1422 +/- 67) kgd exposure with an atmospheric argon fill. This is the most sensitive dark matter search performed with an argon target, corresponding to a 90% CL upper limit on the WIMP-nucleon spin-independent cross section of 6.1 x 10(-44) cm(2) for a WIMP mass of 100 Gev/c(2). (C) 2015 The Authors. Published by Elsevier B.V.

引用

页码：456 / 466

页数：11

共 52 条

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