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1. Limits on spin-dependent WIMP-nucleon cross sections from 225 live days of XENON100 data

Author

Marc Schumann, P. Shagin, A. Behrens, Ehud Duchovni, E. Pantic, M. Messina, J. A. M. Lopes, A. Kish, M. Garbini, K. Arisaka, Jean-Pierre Cussonneau, Hardy Simgen, A. D. Ferella, D. Thers, Boris Bauermeister, R. F. Lang, João Cardoso, K. Lung, A. P. Colijn, T. Marrodán Undagoitia, Ch. Weinheimer, Laura Baudis, Hui Wang, F. Gao, M. P. Decowski, Manfred Lindner, C. Ghag, C. Levy, M. Selvi, W. T. Chen, J. Lamblin, H. Landsman, Daniel Lellouch, P. R. Scovell, H. Contreras, P. Beltrame, Florian Kaether, Kaixuan Ni, Ran Budnik, F. V. Massoli, A. Molinario, Qing Lin, B. Choi, J.M.F. dos Santos, L. Scotto Lavina, Sebastian Lindemann, S. Rosendahl, S. Fattori, A. Teymourian, N. Priel, C. Balan, W. Hampel, Karl Giboni, W. Fulgione, Ethan Brown, Elena Aprile, F. Arneodo, April S. Brown, Uwe Oberlack, K. E. Lim, Jochen Schreiner, C. Grignon, A. J. Melgarejo Fernandez, M. Le Calloch, M. Alfonsi, O. Vitells, A. Rizzo, S. E. A. Orrigo, Y. Meng, Giacomo Bruno, G. Sartorelli, M. Weber, G. Plante, Luke Goetzke, K. Bokeloh, E. K. U. Gross, R. Persiani, Astroparticle Physics (IHEF, IoP, FNWI), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), XENON100, E. Aprile, M. Alfonsi, K. Arisaka, F. Arneodo, C. Balan, L. Baudi, B. Bauermeister, A. Behren, P. Beltrame, K. Bokeloh, A. Brown, E. Brown, G. Bruno, R. Budnik, J. M. R. Cardoso, W.-T. Chen, B. Choi, A. P. Colijn, H. Contrera, J. P. Cussonneau, M. P. Decowski, E. Duchovni, S. Fattori, A. D. Ferella, W. Fulgione, F. Gao, M. Garbini, C. Ghag, K.-L. Giboni, L. W. Goetzke, C. Grignon, E. Gro, W. Hampel, F. Kaether, A. Kish, J. Lamblin, H. Landsman, R. F. Lang, M. Le Calloch, D. Lellouch, C. Levy, K. E. Lim, Q. Lin, S. Lindemann, M. Lindner, J. A. M. Lope, K. Lung, T. Marrodán Undagoitia, F. V. Massoli, A. J. Melgarejo Fernandez, Y. Meng, M. Messina, A. Molinario, K. Ni, U. Oberlack, S. E. A. Orrigo, E. Pantic, R. Persiani, G. Plante, N. Priel, A. Rizzo, S. Rosendahl, J. M. F. dos Santo, G. Sartorelli, J. Schreiner, M. Schumann, L. Scotto Lavina, P. R. Scovell, M. Selvi, P. Shagin, H. Simgen, A. Teymourian, D. Ther, O. Vitell, H. Wang, M. Weber, C. Weinheimer, and XENON100 collaboration

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Dark matter, General Physics and Astronomy, FOS: Physical sciences, 01 natural sciences, dark matter, Particle detector, High Energy Physics - Experiment, Nuclear physics, Cross section (physics), High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Pseudovector, Instrumentation and Methods for Astrophysics (astro-ph.IM), Spin-½, Physics, 010308 nuclear & particles physics, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Astrophysics - Instrumentation and Methods for Astrophysics, Nucleon, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present new experimental constraints on the elastic, spin-dependent WIMP-nucleon cross section using recent data from the XENON100 experiment, operated in the Laboratori Nazionali del Gran Sasso in Italy. An analysis of 224.6 live days x 34 kg of exposure acquired during 2011 and 2012 revealed no excess signal due to axial-vector WIMP interactions with 129-Xe and 131-Xe nuclei. This leads to the most stringent upper limits on WIMP-neutron cross sections for WIMP masses above 6 GeV, with a minimum cross section of 3.5 x 10^{-40} cm^2 at a WIMP mass of 45 GeV, at 90% confidence level., Comment: 5 pages, 3 figures; corrected caption of figure 3

Published
2013
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2. Dark Matter Results from 100 Live Days of XENON100 Data

Author

K. Arisaka, Marc Schumann, P. Shagin, F. Arneodo, J. A. M. Lopes, A. Kish, G. Sartorelli, K. E. Lim, R. Santorelli, Manfred Lindner, C. W. Lam, K. Bokeloh, S. Fattori, A. Behrens, M. Selvi, J. Lamblin, Eilam Gross, Elena Aprile, David B. Cline, D. Thers, Y. Mei, E. Pantic, R. F. Lang, A. Teymourian, R. Persiani, Ethan Brown, T. Bruch, K. L. Giboni, Hardy Simgen, A. D. Ferella, Hongwei Wang, M. Weber, T. Marrodán Undagoitia, C. Levy, Ch. Weinheimer, B. Choi, G. Plante, K. Lung, Laura Baudis, J.M.F. dos Santos, Sebastian Lindemann, Kaixuan Ni, A. J. Melgarejo Fernandez, S. E. A. Orrigo, A. C. C. Ribeiro, Giacomo Bruno, O. Vitells, Uwe Oberlack, Qing Lin, Ehud Duchovni, A. Askin, João Cardoso, F. Gao, W. T. Chen, E. Aprile, K. Arisaka, F. Arneodo, A. Askin, L. Baudi, A. Behren, K. Bokeloh, E. Brown, T. Bruch, G. Bruno, J. M. R. Cardoso, W.-T. Chen, B. Choi, D. Cline, E. Duchovni, S. Fattori, A. D. Ferella, F. Gao, K.-L. Giboni, E. Gro, A. Kish, C. W. Lam, J. Lamblin, R. F. Lang, C. Levy, K. E. Lim, Q. Lin, S. Lindemann, M. Lindner, J. A. M. Lope, K. Lung, T. Marrodan Undagoitia, Y. Mei, A. J. Melgarejo Fernandez, K. Ni| U. Oberlack, S. E. A. Orrigo, E. Pantic, R. Persiani, G. Plante, A. C. C. Ribeiro, R. Santorelli, J. M. F. dos Santo, G. Sartorelli, M. Schumann, M. Selvi, P. Shagin, H. Simgen, A. Teymourian, D. Ther, O. Vitell, H. Wang, M. Weber, C. Weinheimer, Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and XENON100

Subjects
Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Large Underground Xenon experiment, 010308 nuclear & particles physics, DARK MATTER, Dark matter, Hadron, FOS: Physical sciences, General Physics and Astronomy, Elementary particle, Fermion, 01 natural sciences, Particle detector, High Energy Physics - Experiment, WIMPS, Nuclear physics, High Energy Physics - Experiment (hep-ex), XENON, WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], TPC, 010306 general physics, Nucleon, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present results from the direct search for dark matter with the XENON100 detector, installed underground at the Laboratori Nazionali del Gran Sasso of INFN, Italy. XENON100 is a two-phase time projection chamber with a 62 kg liquid xenon target. Interaction vertex reconstruction in three dimensions with millimeter precision allows to select only the innermost 48 kg as ultra-low background fiducial target. In 100.9 live days of data, acquired between January and June 2010, no evidence for dark matter is found. Three candidate events were observed in a pre-defined signal region with an expected background of 1.8 +/- 0.6 events. This leads to the most stringent limit on dark matter interactions today, excluding spin-independent elastic WIMP-nucleon scattering cross-sections above 7.0x10^-45 cm^2 for a WIMP mass of 50 GeV/c^2 at 90% confidence level., 5 pages, 5 figures; matches accepted version

Published
2011
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3. Implications on inelastic dark matter from 100 live days of XENON100 data

Author

E. Pantic, Ethan Brown, M. Selvi, David B. Cline, Y. Mei, J.M.F. dos Santos, Hui Wang, T. Marrodán Undagoitia, Manfred Lindner, Ch. Weinheimer, B. Choi, A. Behrens, Sebastian Lindemann, Karl Giboni, K. Arisaka, R. Santorelli, F. Arneodo, M. Weber, G. Plante, Hardy Simgen, A. D. Ferella, S. Fattori, J. A. M. Lopes, K. Lung, A. Kish, Laura Baudis, A. Teymourian, C. W. Lam, D. Thers, R. F. Lang, A. C. C. Ribeiro, Giacomo Bruno, Elena Aprile, C. Levy, T. Bruch, Kaixuan Ni, K. E. Lim, S. E. A. Orrigo, J. Lamblin, Uwe Oberlack, O. Vitells, Ehud Duchovni, A. J. Melgarejo Fernandez, Qing Lin, A. Askin, João Cardoso, F. Gao, W. T. Chen, Marc Schumann, P. Shagin, G. Sartorelli, R. Persiani, K. Bokeloh, E. K. U. Gross, E. Aprile, K. Arisaka, F. Arneodo, A. Askin, L. Baudi, A. Behren, K. Bokeloh, E. Brown, T. Bruch, G. Bruno, J. M. R. Cardoso, W.-T. Chen, B. Choi, D. Cline, E. Duchovni, S. Fattori, A. D. Ferella, F. Gao, K.-L. Giboni, E. Gro, A. Kish, C. W. Lam, J. Lamblin, R. F. Lang, C. Levy, K. E. Lim, Q. Lin, S. Lindemann, M. Lindner, J. A. M. Lope, K. Lung, T. Marrodán Undagoitia, Y. Mei, A. J. Melgarejo Fernandez, K. Ni, U. Oberlack, S. E. A. Orrigo, E. Pantic, R. Persiani, G. Plante, A. C. C. Ribeiro, R. Santorelli, J. M. F. dos Santo, G Sartorelli, M. Schumann, M. Selvi, P. Shagin, H. Simgen, A. Teymourian, D. Ther, O. Vitell, H. Wang, M. Weber, C. Weinheimer, Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and XENON100

Subjects
Physics, Nuclear and High Energy Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Scattering, DARK MATTER, Signal region, Dark matter, FOS: Physical sciences, 01 natural sciences, WIMPS, Nuclear physics, XENON, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], TPC, 010306 general physics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The XENON100 experiment has recently completed a dark matter run with 100.9 live-days of data, taken from January to June 2010. Events in a 48kg fiducial volume in the energy range between 8.4 and 44.6 keVnr have been analyzed. A total of three events have been found in the predefined signal region, compatible with the background prediction of (1.8 \pm 0.6) events. Based on this analysis we present limits on the WIMP-nucleon cross section for inelastic dark matter. With the present data we are able to rule out the explanation for the observed DAMA/LIBRA modulation as being due to inelastic dark matter scattering off iodine at a 90% confidence level., Comment: 3 pages, 3 figures

Published
2011
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4. Observation and applications of single-electron charge signals in the XENON100 experiment

Author

F. V. Massoli, Qing Lin, W. Fulgione, Y. Meng, H. Landsman, Uwe Oberlack, M. Garbini, João Cardoso, B. Choi, F. Gao, W. T. Chen, S. E. A. Orrigo, M. Messina, K. Arisaka, A. Behrens, M. Weber, Auke-Pieter Colijn, K. E. Lim, F. Piastra, S. Fattori, Abbe Brown, G. Kessler, G. Plante, W. Hampel, O. Vitells, R. Persiani, R. Itay, J. Naganoma, F. Arneodo, M. Selvi, A. J. Melgarejo Fernandez, Kaixuan Ni, Hui Wang, E. Pantic, H. Simgen, M. Le Calloch, M. Alfonsi, C. Grignon, K. L. Giboni, Florian Kaether, Boris Bauermeister, C. Balan, J. A. M. Lopes, A. Kish, Elena Aprile, Eilam Gross, Giacomo Bruno, T. Marrodán Undagoitia, Luke Goetzke, S. Bruenner, Ch. Weinheimer, C. Ghag, K. Bokeloh, C. Levy, J. Schreiner, M. P. Decowski, H. Contreras, Manfred Lindner, R. F. Lang, A. Molinario, N. Priel, Jean-Pierre Cussonneau, P. Beltrame, S. Rosendahl, A. Teymourian, A. Rizzo, Ethan Brown, Marc Schumann, P. Shagin, J. Lamblin, D. Thers, E. Duchovni, Laura Baudis, Ran Budnik, Gabriella Sartorelli, L. Scotto Lavina, K. Lung, A. D. Ferella, J.M.F. dos Santos, Sebastian Lindemann, E Aprile, M Alfonsi, K Arisaka, F Arneodo, C Balan, L Baudi, B Bauermeister, A Behren, P Beltrame, K Bokeloh, A Brown, E Brown, S Bruenner, G Bruno, R Budnik, J M R Cardoso, W-T Chen, B Choi, A P Colijn, H Contrera, J P Cussonneau, M P Decowski, E Duchovni, S Fattori, A D Ferella, W Fulgione, F Gao, M Garbini, C Ghag, K-L Giboni, L W Goetzke, C Grignon, E Gro, W Hampel, R Itay, F Kaether, G Kessler, A Kish, J Lamblin, H Landsman, R F Lang, M Le Calloch, C Levy, K E Lim, Q Lin, S Lindemann, M Lindner, J A M Lope, K Lung, T Marrodán Undagoitia, F V Massoli, A J Melgarejo Fernandez, Y Meng, M Messina, A Molinario, J Naganoma, K Ni, U Oberlack, S E A Orrigo, E Pantic, R Persiani, F Piastra, G Plante, N Priel, A Rizzo, S Rosendahl, J M F dos Santo, G Sartorelli, J Schreiner, M Schumann, L Scotto Lavina, M Selvi, P Shagin, H Simgen, A Teymourian, D Ther, O Vitell, H Wang, M Weber, C Weinheimer, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), XENON100, Astroparticle Physics (IHEF, IoP, FNWI), and The XENON100 collaboration

Subjects
Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, Drift velocity, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Physics::Instrumentation and Detectors, Dark matter, chemistry.chemical_element, FOS: Physical sciences, double phase TPC, 01 natural sciences, dark matter, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Xenon, WIMP, photoionization, single electron, xenon, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Time projection chamber, 010308 nuclear & particles physics, Scattering, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), 3. Good health, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], chemistry, Weakly interacting massive particles, Atomic physics, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

The XENON100 dark matter experiment uses liquid xenon in a time projection chamber (TPC) to measure xenon nuclear recoils resulting from the scattering of dark matter Weakly Interacting Massive Particles (WIMPs). In this paper, we report the observation of single-electron charge signals which are not related to WIMP interactions. These signals, which show the excellent sensitivity of the detector to small charge signals, are explained as being due to the photoionization of impurities in the liquid xenon and of the metal components inside the TPC. They are used as a unique calibration source to characterize the detector. We explain how we can infer crucial parameters for the XENON100 experiment: the secondary-scintillation gain, the extraction yield from the liquid to the gas phase and the electron drift velocity., Comment: 16 pages, 8 figures. Accepted for publication in Journal of Physics G: Nuclear and Particle Physics

Published
2014
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5. Dark matter results from 225 live days of XENON100 data

Author

W. Hampel, M. Garbini, J.M.F. dos Santos, J. Lamblin, K. Bokeloh, Jean-Pierre Cussonneau, S. Rosendahl, Ethan Brown, M. Selvi, Sebastian Lindemann, Eilam Gross, Boris Bauermeister, P. Beltrame, Jochen Schreiner, Luke Goetzke, Hardy Simgen, A. D. Ferella, G. Sartorelli, A. Teymourian, F. Arneodo, Laura Baudis, H. Landsman, M. Le Calloch, J. A. M. Lopes, S. Fattori, Y. Meng, O. Vitells, A. Rizzo, David B. Cline, S. E. A. Orrigo, A. Kish, João Cardoso, K. Arisaka, R. Persiani, L. Scotto Lavina, C. Grignon, K. L. Giboni, H. Contreras, F. Gao, A. Behrens, E. Pantic, C. Balan, D. Thers, Ehud Duchovni, W. T. Chen, K. E. Lim, M. Weber, Auke-Pieter Colijn, R. F. Lang, Uwe Oberlack, Elena Aprile, Kaixuan Ni, E. Nativ, T. Marrodán Undagoitia, G. Plante, B. Choi, Ch. Weinheimer, A. J. Melgarejo Fernandez, P. R. Scovell, C. Ghag, F. V. Massoli, Qing Lin, M. Alfonsi, K. Lung, A. Molinario, W. Fulgione, Giacomo Bruno, C. Levy, N. Priel, Hui Wang, Florian Kaether, M. P. Decowski, Manfred Lindner, Marc Schumann, P. Shagin, Ran Budnik, Astroparticle Physics (IHEF, IoP, FNWI), E. Aprile, M. Alfonsi, K. Arisaka, F. Arneodo, C. Balan, L. Baudi, B. Bauermeister, A. Behren, P. Beltrame, K. Bokeloh, E. Brown, G. Bruno, R. Budnik, J. M. R. Cardoso, W.-T. Chen, B. Choi, D. Cline, A. P. Colijn, H. Contrera, J. P. Cussonneau, M. P. Decowski, E. Duchovni, S. Fattori, A. D. Ferella, W. Fulgione, F. Gao, M. Garbini, C. Ghag, K.-L. Giboni, L. W. Goetzke, C. Grignon, E. Gro, W. Hampel, F. Kaether, A. Kish, J. Lamblin, H. Landsman, R. F. Lang, M. Le Calloch, C. Levy, K. E. Lim, Q. Lin, S. Lindemann, M. Lindner, J. A. M. Lope, K. Lung, T. Marrodán Undagoitia, F. V. Massoli, A. J. Melgarejo Fernandez, Y. Meng, A. Molinario, E. Nativ, K. Ni, U. Oberlack, S. E. A. Orrigo, E. Pantic, R. Persiani, G. Plante, N. Priel, A. Rizzo, S. Rosendahl, J. M. F. dos Santo, G. Sartorelli, J. Schreiner, M. Schumann, L. Scotto Lavina, P. R. Scovell, M. Selvi, P. Shagin, H. Simgen, A. Teymourian, D. Ther, O. Vitell, H. Wang, M. Weber, C. Weinheimer, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), and XENON100

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Large Underground Xenon experiment, Dark matter, FOS: Physical sciences, General Physics and Astronomy, WIMP Argon Programme, 01 natural sciences, 7. Clean energy, Particle detector, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Liquid Xenon, Physics, Range (particle radiation), 010308 nuclear & particles physics, DARK MATTER, Instrumentation and Detectors (physics.ins-det), High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], DAMA/NaI, TPC, PandaX, Direct search for Dark Matter, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report on a search for particle dark matter with the XENON100 experiment, operated at the Laboratori Nazionali del Gran Sasso (LNGS) for 13 months during 2011 and 2012. XENON100 features an ultra-low electromagnetic background of (5.3 \pm 0.6) \times 10^-3 events (kg day keVee)^-1 in the energy region of interest. A blind analysis of 224.6 live days \times 34 kg exposure has yielded no evidence for dark matter interactions. The two candidate events observed in the pre-defined nuclear recoil energy range of 6.6-30.5 keVnr are consistent with the background expectation of (1.0 \pm 0.2) events. A Profile Likelihood analysis using a 6.6-43.3 keVnr energy range sets the most stringent limit on the spin-independent elastic WIMP-nucleon scattering cross section for WIMP masses above 8 GeV/c^2, with a minimum of 2 \times 10^-45 cm^2 at 55 GeV/c^2 and 90% confidence level., 6 pages, 5 figures. Matches version accepted by PRL. Includes limits up to 10 TeV/c^2, published as supplementary material: http://prl.aps.org/supplemental/PRL/v109/i18/e181301 Please cite high mass limits as "Phys. Rev. Lett. 109, 181301 (2012), online supplementary material."

Published
2012
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