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XENON100 Dark Matter Results from a Combination of 477 Live Days

E. Aprile J. Aalbers F. Agostini M. Alfonsi D. Amaro M. Anthony F. Arneodo P. Barrow L. Baudis B. Bauermeister M. L. Benabderrahmane Thierry Berger A. Breur 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 Jean-Pierre Cussonneau 1 M. P. Decowski P. de Perio P. Di Gangi A. Di Giovanni Sara Diglio 1 E. Duchovni J. Fei A. D. Ferella A. Fieguth D. Franco W. Fulgione A. Gallo Rosso M. Galloway F. Gao M. Garbini C. Geis L. W. Goetzke Z. Greene C. Grignon C. Hasterok E. Hogenbirk R. Itay B. Kaminsky G. Kessler A. Kish H. Landsman R. F. Lang D. Lellouch L. Levinson M. Le Calloch 1 C. Levy Q. Lin S. Lindemann M. Lindner J. A. M. Lopes A. Manfredini T. Marrodán Undagoitia Julien Masbou 1 F. V. Massoli D. Masson D. Mayani Y. Meng M. Messina K. Micheneau 1 B. Miguez A. Molinario M. Murra J. Naganoma K. Ni U. Oberlack A. Orrigo P. Pakarha B. Pelssers R. Persiani 1 F. Piastra J. Pienaar C. Piro G. Plante N. Priel L. Rauch S. Reichard C. Reuter A. Rizzo S. Rosendahl N. Rupp J. dos Santos G. Sartorelli M. Scheibelhut S. Schindler J. Schreiner M. Schumann L. Scotto Lavina 1 M. Selvi P. Shagin M. Silva H. Simgen M. V. Sivers A. Stein Dominique Thers 1 A. Tiseni G. Trinchero C. D. Tunnell R. Wall H. Wang M. Weber Y. Wei C. Weinheimer J. Wulf Y. Zhang F. D. Amaro P. A. Breur A. Gallo Rosso M. Le Calloch 1 T. Marrodán Undagoitia S. E. A. Orrigo M. -C. Piro J. M. F. Dos Santos L. Scotto Lavina 1
Abstract : We report on WIMP search results of the XENON100 experiment, combining three runs summing up to 477 live days from January 2010 to January 2014. Data from the first two runs were already published. A blind analysis was applied to the last run recorded between April 2013 and January 2014 prior to combining the results. The ultra-low electromagnetic background of the experiment, ~$5 \times 10^{-3}$ events/(keV$_{\mathrm{ee}}\times$kg$\times$day) before electronic recoil rejection, together with the increased exposure of 48 kg $\times$ yr improves the sensitivity. A profile likelihood analysis using an energy range of (6.6 - 43.3) keV$_{\mathrm{nr}}$ sets a limit on the elastic, spin-independent WIMP-nucleon scattering cross section for WIMP masses above 8 GeV/$c^2$, with a minimum of 1.1 $\times 10^{-45}$ cm$^2$ at 50 GeV/$c^2$ and 90% confidence level. We also report updated constraints on the elastic, spin-dependent WIMP-nucleon cross sections obtained with the same data. We set upper limits on the WIMP-neutron (proton) cross section with a minimum of 2.0 $\times 10^{-40}$ cm$^2$ (52$\times 10^{-40}$ cm$^2$) at a WIMP mass of 50 GeV/$c^2$, at 90% confidence level.
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Submitted on : Wednesday, February 15, 2017 - 3:48:04 PM
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E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, D. Amaro, et al.. XENON100 Dark Matter Results from a Combination of 477 Live Days. Physical Review D, American Physical Society, 2016, 94 (12), pp.122001. ⟨10.1103/PhysRevD.94.122001⟩. ⟨in2p3-01468573⟩



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