First Dark Matter Search Results from the XENON1T Experiment

Journal
Date Issued
2017
Author(s)
Aprile, E.
•
Aalbers, J.
•
Agostini, F.
•
Alfonsi, M.
•
Amaro, F. D.
•
Anthony, M.
•
Arneodo, F.
•
Barrow, P.
•
Baudis, L.
•
Bauermeister, B.
•
Benabderrahmane, M. L.
•
Berger, T.
•
Breur, P. A.
•
Brown, A.
•
Brown, E.
•
Bruenner, S.
•
•
Budnik, R.
•
Bütikofer, L.
•
Calvén, J.
•
Cardoso, J. M. R.
•
Cervantes, M.
•
Cichon, D.
•
Coderre, D.
•
Colijn, A. P.
•
Conrad, J.
•
Cussonneau, J. P.
•
Decowski, M. P.
•
de Perio, P.
•
di Gangi, P.
•
di Giovanni, A.
•
Diglio, S.
•
Eurin, G.
•
Fei, J.
•
Ferella, A. D.
•
Fieguth, A.
•
•
Gallo Rosso, A.
•
Galloway, M.
•
Gao, F.
•
Garbini, M.
•
Gardner, R.
•
Geis, C.
•
Goetzke, L. W.
•
Grandi, L.
•
Greene, Z.
•
Grignon, C.
•
Hasterok, C.
•
Hogenbirk, E.
•
Howlett, J.
•
Itay, R.
•
Kaminsky, B.
•
Kazama, S.
•
Kessler, G.
•
Kish, A.
•
Landsman, H.
•
Lang, R. F.
•
Lellouch, D.
•
Levinson, L.
•
Lin, Q.
•
Lindemann, S.
•
Lindner, M.
•
Lombardi, F.
•
Lopes, J. A. M.
•
Manfredini, A.
•
Mariș, I.
•
Marrodán Undagoitia, T.
•
Masbou, J.
•
Massoli, F. V.
•
Masson, D.
•
Mayani, D.
•
Messina, M.
•
Micheneau, K.
•
•
Morâ, K.
•
Murra, M.
•
Naganoma, J.
•
Ni, K.
•
Oberlack, U.
•
Pakarha, P.
•
Pelssers, B.
•
Persiani, R.
•
Piastra, F.
•
Pienaar, J.
•
Pizzella, V.
•
Piro, M. -C.
•
Plante, G.
•
Priel, N.
•
Rauch, L.
•
Reichard, S.
•
Reuter, C.
•
Riedel, B.
•
Rizzo, A.
•
Rosendahl, S.
•
Rupp, N.
•
Saldanha, R.
•
Dos Santos, J. M. F.
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Sartorelli, G.
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Scheibelhut, M.
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Schindler, S.
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Schreiner, J.
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Schumann, M.
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Scotto Lavina, L.
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Selvi, M.
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Shagin, P.
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Shockley, E.
•
Silva, M.
•
Simgen, H.
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Sivers, M. V.
•
Stein, A.
•
Thapa, S.
•
Thers, D.
•
Tiseni, A.
•
•
Tunnell, C.
•
Vargas, M.
•
Upole, N.
•
Wang, H.
•
Wang, Z.
•
Wei, Y.
•
Weinheimer, C.
•
Wulf, J.
•
Ye, J.
•
Zhang, Y.
•
Zhu, T.
•
Xenon Collaboration
DOI
Abstract
We report the first dark matter search results from XENON1T, a ∼2000 -kg -target-mass dual-phase (liquid-gas) xenon time projection chamber in operation at the Laboratori Nazionali del Gran Sasso in Italy and the first ton-scale detector of this kind. The blinded search used 34.2 live days of data acquired between November 2016 and January 2017. Inside the (1042 ±12 )-kg fiducial mass and in the [5 ,40 ] keVnr energy range of interest for weakly interacting massive particle (WIMP) dark matter searches, the electronic recoil background was (1.93 ±0.25 )×10-4 events /(kg ×day ×keVee) , the lowest ever achieved in such a dark matter detector. A profile likelihood analysis shows that the data are consistent with the background-only hypothesis. We derive the most stringent exclusion limits on the spin-independent WIMP-nucleon interaction cross section for WIMP masses above 10 GeV /c2 , with a minimum of 7.7 ×10-47 cm2 for 35 -GeV /c2 WIMPs at 90% C.L.
Volume
119
Issue
18
Start page
181301
Uri
Url
Issn Identifier
0031-9007
Ads BibCode
2017PhRvL.119r1301A
Rights
open.access
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