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18 April 2024

» arxiv » 1705.6655

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First Dark Matter Search Results from the XENON1T Experiment
E. Aprile ; J. Aalbers ; F. Agostini ; M. Alfonsi ; F. D. Amaro ; M. Anthony ; F. Arneodo ; P. Barrow ; L. Baudis ; B. Bauermeister ; M. L. Benabderrahmane ; T. Berger ; P. A. Breur ; A. Brown ; A. Brown ; E. Brown ; S. Bruenner ; G. Bruno ; R. Budnik ; L. Bütikofer ; J. Calvén ; J. M. R. Cardoso ; M. Cervantes ; D. Cichon ; D. Coderre ; A. P. Colijn ; J. Conrad ; J. P. Cussonneau ; M. P. Decowski ; P. de Perio ; P. Di Gangi ; A. Di Giovanni ; S. Diglio ; G. Eurin ; J. Fei ; A. D. Ferella ; A. Fieguth ; W. Fulgione ; A. Gallo Rosso ; M. Galloway ; F. Gao ; M. Garbini ; R. Gardner ; C. Geis ; L. W. Goetzke ; L. Grandi ; Z. Greene ; C. Grignon ; C. Hasterok ; E. Hogenbirk ; J. Howlett ; R. Itay ; B. Kaminsky ; S. Kazama ; G. Kessler ; A. Kish ; H. Landsman ; R. F. Lang ; D. Lellouch ; L. Levinson ; Q. Lin ; S. Lindemann ; M. Lindner ; F. Lombardi ; J. A. M. Lopes ; A. Manfredini ; I. Mariş ; T. Marrodán Undagoitia ; J. Masbou ; F. V. Massoli ; D. Masson ; D. Mayani ; M. Messina ; K. Micheneau ; A. Molinario ; K. Mor aa ; M. Murra ; J. Naganoma ; K. Ni ; U. Oberlack ; P. Pakarha ; B. Pelssers ; R. Persiani ; F. Piastra ; J. Pienaar ; V. Pizzella ; M.-C. Piro ; G. Plante ; N. Priel ; L. Rauch ; S. Reichard ; C. Reuter ; B. Riedel ; A. Rizzo ; S. Rosendahl ; N. Rupp ; R. Saldanha ; J. M. F. dos Santos ; G. Sartorelli ; M. Scheibelhut ; S. Schindler ; J. Schreiner ; M. Schumann ; L. Scotto Lavina ; M. Selvi ; P. Shagin ; E. Shockley ; M. Silva ; H. Simgen ; M. v. Sivers ; A. Stein ; S. Thapa ; D. Thers ; A. Tiseni ; G. Trinchero ; C. Tunnell ; M. Vargas ; N. Upole ; H. Wang ; Z. Wang ; Y. Wei ; C. Weinheimer ; J. Wulf ; J. Ye ; Y. Zhang ; T. Zhu ;
Date:	18 May 2017
Abstract:	We report the first dark matter search results from XENON1T, a $sim$2000-kg-target-mass dual-phase (liquid-gas) xenon time projection chamber in operation at the Laboratori Nazionali del Gran Sasso in Italy and the first ton-scale detector of this kind. The blinded search used 34.2 live days of data acquired between November 2016 and January 2017. Inside the (1042$pm$12) kg fiducial mass and in the [5, 40] $mathrm{keV}_{mathrm{nr}}$ energy range of interest for WIMP dark matter searches, the electronic recoil background was $(1.93 pm 0.25) imes 10^{-4}$ events/(kg $ imes$ day $ imes mathrm{keV}_{mathrm{ee}}$), the lowest ever achieved in a dark matter detector. A profile likelihood analysis shows that the data is consistent with the background-only hypothesis. We derive the most stringent exclusion limits on the spin-independent WIMP-nucleon interaction cross section for WIMP masses above 10 GeV/c${}^2$, with a minimum of 7.7 $ imes 10^{-47}$ cm${}^2$ for 35-GeV/c${}^2$ WIMPs at 90% confidence level.
Source:	arXiv, 1705.6655
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