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Your search keyword '"Orrigo S. E. A."' showing total 15 results
Start Over Author "Orrigo S. E. A." Topic astrophysics - cosmology and nongalactic astrophysics
15 results on '"Orrigo S. E. A."'

1. XENON100 Dark Matter Results from a Combination of 477 Live Days

Author

XENON100 Collaboration, 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., Bruno, G., 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., Duchovni, E., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Rosso, A. Gallo, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Levy, C., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M. -C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. D., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., and Zhang, Y.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Physics - Instrumentation and Detectors
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., Comment: 12 pages, 13 figures, 2 tables, Limit data points in TeX

Published
2016
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2. A low-mass dark matter search using ionization signals in XENON100

Author

XENON100 Collaboration, 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., Bruenner, E. Brown S., Bruno, G., Budnik, R., Buss, A., Bütikofer, L., 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., Duchovni, E., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Galloway, M., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Gross, E., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Levinson, L., Calloch, M. Le, Levy, C., Linde, F., Lindemann, S., Lindner, M., Lopes, J. A. M., Lyashenko, A., Manfredini, A., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Fernandez, A. J. Melgarejo, Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Simgen, H., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. D., von Sivers, M., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., and Zhang, Y.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract

We perform a low-mass dark matter search using an exposure of 30\,kg$\times$yr with the XENON100 detector. By dropping the requirement of a scintillation signal and using only the ionization signal to determine the interaction energy, we lowered the energy threshold for detection to 0.7\,keV for nuclear recoils. No dark matter detection can be claimed because a complete background model cannot be constructed without a primary scintillation signal. Instead, we compute an upper limit on the WIMP-nucleon scattering cross section under the assumption that every event passing our selection criteria could be a signal event. Using an energy interval from 0.7\,keV to 9.1\,keV, we derive a limit on the spin-independent WIMP-nucleon cross section that excludes WIMPs with a mass of 6\,GeV/$c^2$ above $1.4 \times 10^{-41}$\,cm$^2$ at 90\% confidence level., Comment: 6 pages; 7 figures; PRD. Additional file in source material, s2stot, contains the full list of events passing all selection cuts. Limit data points in TeX; Corrected LUX points used for comparison and respective reference in figure 5

Published
2016
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3. Physics reach of the XENON1T dark matter experiment

Author

The XENON collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, F. D., Anthony, M., Arazi, L., Arneodo, F., Balan, C., Barrow, P., Baudis, L., Bauermeister, B., Berger, T., Breur, P., Breskin, A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Cardoso, J. M. R., Cervantes, M., Cichon, D., Coderre, D., Colijn, A. P., Conrad, J., Contreras, H., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Gangi, P., Di Giovanni, A., Duchovni, E., Fattori, S., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Galloway, M., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Gross, E., Hampel, W., Hasterok, C., Itay, R., Kaether, F., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Calloch, M. Le, Levy, C., Lindemann, S., Lindner, M., Lopes, J. A. M., Lyashenko, A., Macmullin, S., Manfredini, A., Undagoitia, T. Marrodán, Masbou, J., Massoli, F. V., Mayani, D., Fernandez, A. J. Melgarejo, Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Santos, J. M. F. dos, Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Simgen, H., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., von Sivers, M., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., and Zhang, Y.

Subjects
Physics - Instrumentation and Detectors, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The XENON1T experiment is currently in the commissioning phase at the Laboratori Nazionali del Gran Sasso, Italy. In this article we study the experiment's expected sensitivity to the spin-independent WIMP-nucleon interaction cross section, based on Monte Carlo predictions of the electronic and nuclear recoil backgrounds. The total electronic recoil background in $1$ tonne fiducial volume and ($1$, $12$) keV electronic recoil equivalent energy region, before applying any selection to discriminate between electronic and nuclear recoils, is $(1.80 \pm 0.15) \cdot 10^{-4}$ ($\rm{kg} \cdot day \cdot keV)^{-1}$, mainly due to the decay of $^{222}\rm{Rn}$ daughters inside the xenon target. The nuclear recoil background in the corresponding nuclear recoil equivalent energy region ($4$, $50$) keV, is composed of $(0.6 \pm 0.1)$ ($\rm{t} \cdot y)^{-1}$ from radiogenic neutrons, $(1.8 \pm 0.3) \cdot 10^{-2}$ ($\rm{t} \cdot y)^{-1}$ from coherent scattering of neutrinos, and less than $0.01$ ($\rm{t} \cdot y)^{-1}$ from muon-induced neutrons. The sensitivity of XENON1T is calculated with the Profile Likelihood Ratio method, after converting the deposited energy of electronic and nuclear recoils into the scintillation and ionization signals seen in the detector. We take into account the systematic uncertainties on the photon and electron emission model, and on the estimation of the backgrounds, treated as nuisance parameters. The main contribution comes from the relative scintillation efficiency $\mathcal{L}_\mathrm{eff}$, which affects both the signal from WIMPs and the nuclear recoil backgrounds. After a $2$ y measurement in $1$ t fiducial volume, the sensitivity reaches a minimum cross section of $1.6 \cdot 10^{-47}$ cm$^2$ at m$_\chi$=$50$ GeV/$c^2$., Comment: 36 pages, 18 figures, published by JCAP

Published
2015
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4. Exclusion of Leptophilic Dark Matter Models using XENON100 Electronic Recoil Data

Author

The XENON Collaboration, Aprile, E., Agostini, F., Alfonsi, M., Arazi, L., Arisaka, K., Arneodo, F., Auger, M., Balan, C., Barrow, P., Baudis, L., Bauermeister, B., Behrens, A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Buetikofer, L., Cardoso, J. M. R., Cervantes, M., Coderre, D., Colijn, A. P., Contreras, H., Cussonneau, J. P., Decowski, M. P., Di Giovanni, A., Duchovni, E., Fattori, S., Ferella, A. D., Fieguth, A., Fulgione, W., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grignon, C., Gross, E., Hampel, W., Itay, R., Kaether, F., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Calloch, M. Le, Lellouch, D., Levinson, L., Levy, C., Lindemann, S., Lindner, M., Lopes, J. A. M., Lyashenko, A., Macmullin, S., Undagoitia, T. Marrodan, Masbou, J., Massoli, F. V., Paras, D. Mayani, Fernandez, A. J. Melgarejo, Meng, Y., Messina, M., Miguez, B., Molinario, A., Morana, G., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pantic, E., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Santos, J. M. F. dos, Sartorelli, G., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Vitells, O., Wall, R., Wang, H., Weber, M., and Weinheimer, C.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment
Abstract

Laboratory experiments searching for galactic dark matter particles scattering off nuclei have so far not been able to establish a discovery. We use data from the XENON100 experiment to search for dark matter interacting with electrons. With no evidence for a signal above the low background of our experiment, we exclude a variety of representative dark matter models that would induce electronic recoils. For axial-vector couplings to electrons, we exclude cross-sections above 6x10^(-35) cm^2 for particle masses of m_chi = 2 GeV/c^2. Independent of the dark matter halo, we exclude leptophilic models as explanation for the long-standing DAMA/LIBRA signal, such as couplings to electrons through axial-vector interactions at a 4.4 sigma confidence level, mirror dark matter at 3.6 sigma, and luminous dark matter at 4.6 sigma., Comment: 4 pages, 4 figures, with supporting online material

Published
2015
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5. Search for Event Rate Modulation in XENON100 Electronic Recoil Data

Author

The XENON Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Anthony, M., Arazi, L., Arisaka, K., Arneodo, F., Balan, C., Barrow, P., Baudis, L., Bauermeister, B., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Buetikofer, L., Cardoso, J. M. R., Cervantes, M., Coderre, D., Colijn, A. P., Contreras, H., Cussonneau, J. P., Decowski, M. P., de Perio, P., Di Giovanni, A., Duchovni, E., Fattori, S., Ferella, A. D., Fieguth, A., Fulgione, W., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grignon, C., Gross, E., Hampel, W., Hasterok, C., Itay, R., Kaether, F., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Calloch, M. Le, Lellouch, D., Levinson, L., Levy, C., Lindemann, S., Lindner, M., Lopes, J. A. M., Lyashenko, A., Macmullin, S., Undagoitia, T. Marrodan, Masbou, J., Massoli, F. V., Mayani, D., Meng, A. J. Melgarejo Fernandez. Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Santos, J. M. F. dos, Sartorelli, G., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Wall, R., Wang, H., Weber, M., Weinheimer, C., and Zhang, Y.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment, Physics - Instrumentation and Detectors
Abstract

We have searched for periodic variations of the electronic recoil event rate in the (2-6) keV energy range recorded between February 2011 and March 2012 with the XENON100 detector, adding up to 224.6 live days in total. Following a detailed study to establish the stability of the detector and its background contributions during this run, we performed an un-binned profile likelihood analysis to identify any periodicity up to 500 days. We find a global significance of less than 1 sigma for all periods suggesting no statistically significant modulation in the data. While the local significance for an annual modulation is 2.8 sigma, the analysis of a multiple-scatter control sample and the phase of the modulation disfavor a dark matter interpretation. The DAMA/LIBRA annual modulation interpreted as a dark matter signature with axial-vector coupling of WIMPs to electrons is excluded at 4.8 sigma., Comment: 6 pages, 4 figures

Published
2015
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6. Direct Dark Matter Search with XENON100

Author

Orrigo, S. E. A.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Phenomenology, Physics - Instrumentation and Detectors
Abstract

The XENON100 experiment is the second phase of the XENON program for the direct detection of the dark matter in the universe. The XENON100 detector is a two-phase Time Projection Chamber filled with 161 kg of ultra pure liquid xenon. The results from 224.6 live days of dark matter search with XENON100 are presented. No evidence for dark matter in the form of WIMPs is found, excluding spin-independent WIMP-nucleon scattering cross sections above 2 $\times$ 10$^{-45}$ cm$^2$ for a 55 GeV/c$^2$ WIMP at 90% confidence level (C.L.). The most stringent limit is established on the spin-dependent WIMP-neutron interaction for WIMP masses above 6 GeV/c$^2$, with a minimum cross section of 3.5 $\times$ 10$^{-40}$ cm$^2$ (90% C.L.) for a 45 GeV/c$^2$ WIMP. The same dataset is used to search for axions and axion-like-particles. The best limits to date are set on the axion-electron coupling constant for solar axions, $g_{Ae}$ < 7.7 $\times$ 10$^{-12}$ (90% C.L.), and for axion-like-particles, $g_{Ae}$ < 1 $\times$ 10$^{-12}$ (90% C.L.) for masses between 5 and 10 keV/c$^2$., Comment: Proceedings of the 5th Roma International Conference on Astroparticle Physics RICAP-14. 5 pages, 5 figures

Published
2015
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7. First Axion Results from the XENON100 Experiment

Author

The XENON100 Collaboration, Aprile, E., Agostini, F., Alfonsi, M., Arisaka, K., Arneodo, F., Auger, M., Balan, C., Barrow, P., Baudis, L., Bauermeister, B., Behrens, A., Beltrame, P., Bokeloh, K., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Cardoso, J. M. R., Colijn, A. P., Contreras, H., Cussonneau, J. P., Decowski, M. P., Duchovni, E., Fattori, S., Ferella, A. D., Fulgione, W., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grignon, C., Gross, E., Hampel, W., Itay, R., Kaether, F., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Calloch, M. Le, Lellouch, D., Levy, C., Lindemann, S., Lindner, M., Lopes, J. A. M., Lung, K., Lyashenko, A., Macmullin, S., Undagoitia, T. Marrodan, Masbou, J., Massoli, F. V., Paras, D. Mayani, Fernandez, A. J. Melgarejo, Meng, Y., Messina, M., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Oberlack, U., Orrigo, S. E. A., Pantic, E., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Santos, J. M. F. dos, Sartorelli, G., Schindler, S., Schreiner, J., Schumann, M., Lavina, L. Scotto, Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Tiseni, A., Trinchero, G., Vitells, O., Wang, H., Weber, M., and Weinheimer, C.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, High Energy Physics - Phenomenology
Abstract

We present the first results of searches for axions and axion-like-particles with the XENON100 experiment. The axion-electron coupling constant, $g_{Ae}$, has been probed by exploiting the axio-electric effect in liquid xenon. A profile likelihood analysis of 224.6 live days $\times$ 34 kg exposure has shown no evidence for a signal. By rejecting $g_{Ae}$, larger than $7.7 \times 10^{-12}$ (90\% CL) in the solar axion search, we set the best limit to date on this coupling. In the frame of the DFSZ and KSVZ models, we exclude QCD axions heavier than 0.3 eV/c$^2$ and 80 eV/c$^2$, respectively. For axion-like-particles, under the assumption that they constitute the whole abundance of dark matter in our galaxy, we constrain $g_{Ae}$, to be lower than $1 \times 10^{-12}$ (90\% CL) for mass range from 1 to 40 keV/c$^2$, and set the best limit to date as well.

Published
2014
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8. Dark Matter Results from 100 Live Days of XENON100 Data

Author

XENON100 Collaboration, Aprile, E., Arisaka, K., Arneodo, F., Askin, A., Baudis, L., Behrens, A., Bokeloh, K., Brown, E., Bruch, T., Bruno, G., Cardoso, J. M. R., Chen, W. -T., Choi, B., Cline, D., Duchovni, E., Fattori, S., Ferella, A. D., Gao, F., Giboni, K. -L., Gross, E., Kish, A., Lam, C. W., Lamblin, J., Lang, R. F., Levy, C., Lim, K. E., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Lung, K., Undagoitia, T. Marrodan, Mei, Y., Fernandez, A. J. Melgarejo, Ni, K., Oberlack, U., Orrigo, S. E. A., Pantic, E., Persiani, R., Plante, G., Ribeiro, A. C. C., Santorelli, R., Santos, J. M. F. dos, Sartorelli, G., Schumann, M., Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Vitells, O., Wang, H., Weber, M., and Weinheimer, C.

Subjects
Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment
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., Comment: 5 pages, 5 figures; matches accepted version

Published
2011
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9. Study of the electromagnetic background in the XENON100 experiment

Author

XENON100 Collaboration, Aprile, E., Arisaka, K., Arneodo, F., Askin, A., Baudis, L., Behrens, A., Bokeloh, K., Brown, E., Cardoso, J. M. R., Choi, B., Cline, D., Fattori, S., Ferella, A. D., Giboni, K. -L., Kish, A., Lam, C. W., Lamblin, J., Lang, R. F., Lim, K. E., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Lung, K., Undagoitia, T. Marrodan, Mei, Y., Fernandez, A. J. Melgarejo, Ni, K., Oberlack, U., Orrigo, S. E. A., Pantic, E., Plante, G., Ribeiro, A. C. C., Santorelli, R., Santos, J. M. F. dos, Schumann, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Tziaferi, E., Wang, H., Weber, M., and Weinheimer, C.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The XENON100 experiment, located at the Laboratori Nazionali del Gran Sasso (LNGS), aims to directly detect dark matter in the form of Weakly Interacting Massive Particles (WIMPs) via their elastic scattering off xenon nuclei. We present a comprehensive study of the predicted electronic recoil background coming from radioactive decays inside the detector and shield materials, and intrinsic contamination. Based on GEANT4 Monte Carlo simulations using a detailed geometry together with the measured radioactivity of all detector components, we predict an electronic recoil background in the WIMP-search energy range (0-100 keV) in the 30 kg fiducial mass of less than 10e-2 events/(kg-day-keV), consistent with the experiment's design goal. The predicted background spectrum is in very good agreement with the data taken during the commissioning of the detector, in Fall 2009., Comment: 10 pages, 12 figures The updated version of the paper takes into account the new measurement of $^{136}$Xe 2$\nu$ $\beta\beta$ decay by EXO-200, with a half-life of (2.11$\pm0.04\pm$0.021)$\times10^{21}$ years

Published
2011

10. XENON100 dark matter results from a combination of 477 live days

Author

Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Amaro, D., Anthony, M., Arneodo, F., Barrow, P., Baudis, L., Bauermeister, B., Benabderrahmane, M. L., Berger, T., Breur, A., Brown, A., Brown, E., Bruenner, S., Bruno, G., 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., Perio, P., Di Gangi, P., Di Giovanni, A., Diglio, S., Duchovni, E., Fei, J., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Andrea Gallo Rosso, Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Lellouch, D., Levinson, L., Le Calloch, M., Levy, C., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Manfredini, A., Marrodán Undagoitia, T., Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Dos Santos, J., Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Scotto Lavina, L., Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. V., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. D., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., Zhang, Y., Amaro, F. D., Breur, P. A., Rosso, A. Gallo, Calloch, M. Le, Undagoitia, T. Marrodán, Orrigo, S. E. A., Piro, M. -C, Santos, J. M. F. Dos, Lavina, L. Scotto, 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), XENON, GRAPPA (ITFA, IoP, FNWI), Faculty of Science, Other Research IHEF (IoP, FNWI), Gravitation and Astroparticle Physics Amsterdam, IoP (FNWI), IHEF (IoP, FNWI), 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., Bruno, G., 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., Duchovni, E., Fei, J., Ferella, A. d., Fieguth, A., Franco, D., Fulgione, W., Gallo Rosso, A., Galloway, M., Gao, F., Garbini, M., Geis, C., Goetzke, L. w., Greene, Z., Grignon, C., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. f., Lellouch, D., Levinson, L., Le Calloch, M., Levy, C., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. a. m., Manfredini, A., Marrodán Undagoitia, T., Masbou, J., Massoli, F. v., Masson, D., Mayani, D., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. e. a., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Piro, M.-C., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., dos Santos, J. m. f., Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Scotto Lavina, L., Selvi, M., Shagin, P., Silva, M., Simgen, H., Sivers, M. v., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. d., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., and Zhang, Y.

Subjects
Scattering cross-section, Physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Proton, 010308 nuclear & particles physics, Dark matter, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 7. Clean energy, XENON DARK MATTER WIMP TPC, Nuclear physics, Recoil, WIMP, Likelihood analysis, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Sensitivity (control systems), 010306 general physics, Energy (signal processing), Astrophysics - Cosmology and Nongalactic Astrophysics
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., 12 pages, 13 figures, 2 tables, Limit data points in TeX

Published
2016

11. A low-mass dark matter search using ionization signals in XENON100

Author

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., Bruno, G., Budnik, R., Buss, A., Bütikofer, L., 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., Duchovni, E., Ferella, A. D., Fieguth, A., Franco, D., FULGIONE, VALTER, Galloway, M., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Gross, E., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Levinson, L., Le Calloch, M., Levy, C., Linde, F., Lindemann, S., Lindner, M., Lopes, J. A. M., Lyashenko, A., Manfredini, A., Marrodán Undagoitia, T., Masbou, J., Massoli, F. V., Masson, D., Mayani, D., Melgarejo Fernandez, A. J., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Dos Santos, J. M. F., Sartorelli, G., Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Scotto Lavina, L., Selvi, M., Shagin, P., Simgen, H., Stein, A., Thers, D., Tiseni, A., TRINCHERO, GIAN CARLO, Tunnell, C. D., von Sivers, M., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., Zhang, Y., Xenon Collaboration, GRAPPA (ITFA, IoP, FNWI), Faculty of Science, Other Research IHEF (IoP, FNWI), Gravitation and Astroparticle Physics Amsterdam, IoP (FNWI), IHEF (IoP, FNWI), 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), XENON, 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., Bruno, G., Budnik, R., Buss, A., Bütikofer, L., 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, Pietro, Di Giovanni, A., Duchovni, E., Ferella, A. D., Fieguth, A., Franco, D., Fulgione, W., Galloway, M., Garbini, M., Geis, C., Goetzke, L. W., Greene, Z., Grignon, C., Gross, E., Hasterok, C., Hogenbirk, E., Itay, R., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Levinson, L., Le Calloch, M., Levy, C., Linde, F., Lindemann, S., Lindner, M., Lopes, J. A. M., Lyashenko, A., Manfredini, A., Marrodán Undagoitia, T., Masbou, J., Massoli, FABIO VALERIO, Masson, D., Mayani, D., Melgarejo Fernandez, A. J., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Pelssers, B., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Rupp, N., Dos Santos, J. M. F., Sartorelli, Gabriella, Scheibelhut, M., Schindler, S., Schreiner, J., Schumann, M., Scotto Lavina, L., Selvi, Marco, Shagin, P., Simgen, H., Stein, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C. D., Von Sivers, M., Wall, R., Wang, H., Weber, M., Wei, Y., Weinheimer, C., Wulf, J., and Zhang, Y.

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Signal, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), WIMP, Ionization, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, Scintillation, 010308 nuclear & particles physics, Detector, Instrumentation and Detectors (physics.ins-det), Physics and Astronomy (miscellaneous) DARK MATTER XENON TPC WIMP, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Scintillation counter, Energy (signal processing), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We perform a low-mass dark matter search using an exposure of 30\,kg$\times$yr with the XENON100 detector. By dropping the requirement of a scintillation signal and using only the ionization signal to determine the interaction energy, we lowered the energy threshold for detection to 0.7\,keV for nuclear recoils. No dark matter detection can be claimed because a complete background model cannot be constructed without a primary scintillation signal. Instead, we compute an upper limit on the WIMP-nucleon scattering cross section under the assumption that every event passing our selection criteria could be a signal event. Using an energy interval from 0.7\,keV to 9.1\,keV, we derive a limit on the spin-independent WIMP-nucleon cross section that excludes WIMPs with a mass of 6\,GeV/$c^2$ above $1.4 \times 10^{-41}$\,cm$^2$ at 90\% confidence level., 6 pages; 7 figures; PRD. Additional file in source material, s2stot, contains the full list of events passing all selection cuts. Limit data points in TeX; Corrected LUX points used for comparison and respective reference in figure 5

Published
2016

12. Search for Event Rate Modulation in XENON100 Electronic Recoil Data

Author

Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Anthony, M., Arazi, L., Arisaka, K., Arneodo, F., Balan, C., Barrow, P., Baudis, L., Bauermeister, B., Breur, P. A., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Cardoso, J. M. R., Cervantes, M., Coderre, D., Colijn, A. P., Contreras, H., Cussonneau, J. P., Decowski, M. P., de Perio, P., di Giovanni, A., Duchovni, E., Fattori, S., Ferella, A. D., Fieguth, A., Fulgione, W., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grignon, C., Gross, E., Hampel, W., Hasterok, C., Itay, R., Kaether, F., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Le Calloch, M., Lellouch, D., Levinson, L., Levy, C., Lindemann, S., Lindner, M., Lopes, J. A. M., Lyashenko, A., Macmullin, S., Marrodán Undagoitia, T., Masbou, J., Massoli, F. V., Mayani, D., Melgarejo Fernandez, A. J., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. E. A., Pakarha, P., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Dos Santos, J. M. F., Sartorelli, G., Schindler, S., Schreiner, J., Schumann, M., Scotto Lavina, L., Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Tiseni, A., TRINCHERO, GIAN CARLO, Tunnell, C., Wall, R., Wang, H., Weber, M., Weinheimer, C., Zhang, Y., Xenon Collaboration, Aprile, E., Aalbers, J., Agostini, F., Alfonsi, M., Anthony, M., Arazi, L., Arisaka, K., Arneodo, F., Balan, C., Barrow, P., Baudis, L., Bauermeister, B., Breur, P. a., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Bütikofer, L., Cardoso, J. m. r., Cervantes, M., Coderre, D., Colijn, A. p., Contreras, H., Cussonneau, J. p., Decowski, M. p., de Perio, P., Di Giovanni, A., Duchovni, E., Fattori, S., Ferella, A. d., Fieguth, A., Fulgione, W., Gao, F., Garbini, M., Geis, C., Goetzke, L. w., Grignon, C., Gross, E., Hampel, W., Hasterok, C., Itay, R., Kaether, F., Kaminsky, B., Kessler, G., Kish, A., Landsman, H., Lang, R. f., Le Calloch, M., Lellouch, D., Levinson, L., Levy, C., Lindemann, S., Lindner, M., Lopes, J. a. m., Lyashenko, A., Macmullin, S., Marrodán Undagoitia, T., Masbou, J., Massoli, F. v., Mayani, D., Melgarejo Fernandez, A. j., Meng, Y., Messina, M., Micheneau, K., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Ni, K., Oberlack, U., Orrigo, S. e. a., Pakarha, P., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Rauch, L., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., dos Santos, J. m. f., Sartorelli, G., Schindler, S., Schreiner, J., Schumann, M., Scotto Lavina, L., Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Tiseni, A., Trinchero, G., Tunnell, C., Wall, R., Wang, H., Weber, M., Weinheimer, C., Zhang, Y., 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), XENON100, and Astroparticle Physics (IHEF, IoP, FNWI)

Subjects
Dark Matter, Wimps, Modulation, Physics, Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 530 Physics, Detector, Dark matter, Phase (waves), FOS: Physical sciences, General Physics and Astronomy, Sigma, Instrumentation and Detectors (physics.ins-det), Astrophysics, Particle detector, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Recoil, Modulation, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Event (particle physics), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We have searched for periodic variations of the electronic recoil event rate in the (2-6) keV energy range recorded between February 2011 and March 2012 with the XENON100 detector, adding up to 224.6 live days in total. Following a detailed study to establish the stability of the detector and its background contributions during this run, we performed an un-binned profile likelihood analysis to identify any periodicity up to 500 days. We find a global significance of less than 1 sigma for all periods suggesting no statistically significant modulation in the data. While the local significance for an annual modulation is 2.8 sigma, the analysis of a multiple-scatter control sample and the phase of the modulation disfavor a dark matter interpretation. The DAMA/LIBRA annual modulation interpreted as a dark matter signature with axial-vector coupling of WIMPs to electrons is excluded at 4.8 sigma., Comment: 6 pages, 4 figures

Published
2015

13. First Axion Results from the XENON100 Experiment

Author

Xenon, The Collaboration, Aprile, E., Agostini, F., Alfonsi, M., Arisaka, K., Arneodo, F., Auger, M., Balan, C., Barrow, P., Baudis, L., Bauermeister, B., Behrens, A., Beltrame, P., Bokeloh, K., Brown, A., Brown, E., Bruenner, S., Bruno, G., Budnik, R., Cardoso, J. M. R., Colijn, A. P., Contreras, H., Cussonneau, J. P., Decowski, M. P., Duchovni, E., Fattori, S., Ferella, A. D., Fulgione, W., Gao, F., Garbini, M., Geis, C., Goetzke, L. W., Grignon, C., Gross, E., Hampel, W., Itay, R., Kaether, F., Kessler, G., Kish, A., Landsman, H., Lang, R. F., Le Calloch, M., Lellouch, D., Levy, C., Lindemann, S., Lindner, M., Lopes, J. A. M., Lung, K., Lyashenko, A., Macmullin, S., Marrodan Undagoitia, T., Masbou, J., Massoli, F. V., Mayani Paras, D., Melgarejo Fernandez, A. J., Meng, Y., Messina, M., Miguez, B., Molinario, A., Murra, M., Naganoma, J., Oberlack, U., Orrigo, S. E. A., Pantic, E., Persiani, R., Piastra, F., Pienaar, J., Plante, G., Priel, N., Reichard, S., Reuter, C., Rizzo, A., Rosendahl, S., Dos Santos, J. M. F., Sartorelli, G., Schindler, S., Schreiner, J., Schumann, M., Scotto Lavina, L., Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Tiseni, A., Gian Carlo Trinchero, Vitells, O., Wang, H., Weber, M., Weinheimer, C., 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), E. Aprile, F. Agostini, M. Alfonsi, K. Arisaka, F. Arneodo, M. Auger, C. Balan, P. Barrow, L. Baudi, B. Bauermeister, A. Behren, P. Beltrame, K. Bokeloh, A. Brown, E. Brown, S. Bruenner, G. Bruno, R. Budnik, J. M. R. Cardoso, 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. Gei, L. W. Goetzke, C. Grignon, E. Gro, W. Hampel, R. Itay, F. Kaether, G. Kessler, A. Kish, H. Landsman, R. F. Lang, M. Le Calloch, D. Lellouch, C. Levy, S. Lindemann, M. Lindner, J. A. M. Lope, K. Lung, A. Lyashenko, S. MacMullin, T. Marrodán Undagoitia, J. Masbou, F. V. Massoli, D. Mayani Para, A. J. Melgarejo Fernandez, Y. Meng, M. Messina, B. Miguez, A. Molinario, M. Murra, J. Naganoma, K. Ni, U. Oberlack, S. E. A. Orrigo, E. Pantic, R. Persiani, F. Piastra, J. Pienaar, G. Plante, N. Priel, S. Reichard, C. Reuter, A. Rizzo, S. Rosendahl, J. M. F. dos Santo, G. Sartorelli, S. Schindler, J. Schreiner, M. Schumann, L. Scotto Lavina, M. Selvi, P. Shagin, H. Simgen, A. Teymourian, D. Ther, A. Tiseni, G. Trinchero, O. Vitell, H. Wang, M. Weber, C. Weinheimer, and The XENON100 Collaboration

Subjects
Nuclear and High Energy Physics, Particle physics, Astrophysics and Astronomy, Cosmology and Nongalactic Astrophysics (astro-ph.CO), astro-ph.GA, Dark matter, chemistry.chemical_element, FOS: Physical sciences, Astrophysics, 01 natural sciences, Cosmology, dark matter, Xenon, High Energy Physics - Phenomenology (hep-ph), Assioni, 0103 physical sciences, 010306 general physics, Axion, Liquid Xenon, Coupling, Coupling constant, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, hep-ph, Astrophysics - Astrophysics of Galaxies, Galaxy, High Energy Physics - Phenomenology, chemistry, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Astrophysics of Galaxies (astro-ph.GA), astro-ph.CO, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the first results of searches for axions and axion-like-particles with the XENON100 experiment. The axion-electron coupling constant, $g_{Ae}$, has been tested by exploiting the axio-electric effect in liquid xenon. A profile likelihood analysis of 224.6 live days $\times$ 34 kg exposure has shown no evidence for a signal. By rejecting $g_{Ae}$, larger than $7.7 \times 10^{-12}$ (90% CL) in the solar axion search, we set the best limit to date on this coupling. In the frame of the DFSZ and KSVZ models, we exclude QCD axions heavier than 0.3 eV/c$^2$ and 80 eV/c$^2$, respectively. For axion-like-particles, under the assumption that they constitute the whole abundance of dark matter in our galaxy, we constrain $g_{Ae}$, to be lower than $1 \times 10^{-12}$ (90% CL) for masses between 5 and 10 keV/c$^2$. We present the first results of searches for axions and axionlike particles with the XENON100 experiment. The axion-electron coupling constant, gAe, has been probed by exploiting the axioelectric effect in liquid xenon. A profile likelihood analysis of 224.6 live days × 34-kg exposure has shown no evidence for a signal. By rejecting gAe larger than 7.7×10-12 (90% C.L.) in the solar axion search, we set the best limit to date on this coupling. In the frame of the DFSZ and KSVZ models, we exclude QCD axions heavier than 0.3 and 80 eV/c2, respectively. For axionlike particles, under the assumption that they constitute the whole abundance of dark matter in our galaxy, we constrain gAe to be lower than 1×10-12 (90% C.L.) for masses between 5 and 10 keV/c2. We present the first results of searches for axions and axion-like-particles with the XENON100 experiment. The axion-electron coupling constant, $g_{Ae}$, has been probed by exploiting the axio-electric effect in liquid xenon. A profile likelihood analysis of 224.6 live days $\times$ 34 kg exposure has shown no evidence for a signal. By rejecting $g_{Ae}$, larger than $7.7 \times 10^{-12}$ (90\% CL) in the solar axion search, we set the best limit to date on this coupling. In the frame of the DFSZ and KSVZ models, we exclude QCD axions heavier than 0.3 eV/c$^2$ and 80 eV/c$^2$, respectively. For axion-like-particles, under the assumption that they constitute the whole abundance of dark matter in our galaxy, we constrain $g_{Ae}$, to be lower than $1 \times 10^{-12}$ (90\% CL) for mass range from 1 to 40 keV/c$^2$, and set the best limit to date as well.

Published
2014

14. The XENON100 Dark Matter Experiment

Author

XENON100 Collaboration, Aprile, E., Arisaka, K., Arneodo, F., Askin, A., Baudis, L., Behrens, A., Brown, E., Cardoso, J. M. R., Choi, B., Cline, D., Fattori, S., Ferella, A. D., Giboni, K. L., Kish, A., Lam, C. W., Lang, R. F., Lim, K. E., Lopes, J. A. M., Undagoitia, T. Marrodan, Mei, Y., Fernandez, A. J. Melgarejo, Ni, K., Oberlack, U., Orrigo, S. E. A., Pantic, E., Plante, G., Ribeiro, A. C. C., Santorelli, R., Santos, J. M. F. dos, Schumann, M., Shagin, P., Teymourian, A., Tziaferi, E., Wang, H., and Yamashita, M.

Subjects
Physics, Photomultiplier, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Time projection chamber, Large Underground Xenon experiment, Scattering, Dark matter, FOS: Physical sciences, chemistry.chemical_element, Astronomy and Astrophysics, Nuclear physics, Xenon, chemistry, WIMP, Weakly interacting massive particles, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The XENON100 dark matter experiment uses liquid xenon (LXe) in a time projection chamber (TPC) to search for Xe nuclear recoils resulting from the scattering of dark matter Weakly Interacting Massive Particles (WIMPs). In this paper we present a detailed description of the detector design and present performance results, as established during the commissioning phase and during the first science runs. The active target of XENON100 contains 62 kg of LXe, surrounded by an LXe veto of 99 kg, both instrumented with photomultiplier tubes (PMTs) operating inside the liquid or in Xe gas. The LXe target and veto are contained in a low-radioactivity stainless steel vessel, embedded in a passive radiation shield. The experiment is installed underground at the Laboratori Nazionali del Gran Sasso (LNGS), Italy and has recently published results from a 100 live-days dark matter search. The ultimate design goal of XENON100 is to achieve a spin-independent WIMP-nucleon scattering cross section sensitivity of \sigma = 2x10^-45 cm^2 for a 100 GeV/c^2 WIMP., Comment: 23 pages, 27 figures; version accepted by journal

Published
2011

15. Comment on 'On the subtleties of searching for dark matter with liquid xenon detectors'

Author

The XENON Collaboration, Aprile, E., Alfonsi, M., Arisaka, K., Arneodo, F., Balan, C., Baudis, L., Bauermeister, B., Behrens, A., Beltrame, P., Bokeloh, K., Brown, E., Bruno, G., Budnik, R., Cardoso, J. M. R., Chen, W. -T., Choi, B., Cline, D., Colijn, A. P., Contreras, H., Cussonneau, J. P., Decowski, M. P., Duchovni, E., Fattori, S., Ferella, A. D., Fulgione, W., Gao, F., Garbini, M., Ghag, C., Giboni, K. -L., Goetzke, L. W., Grignon, C., Gross, E., Hampel, W., Kaether, F., Kish, A., Lamblin, J., Landsman, H., Lang, R. F., Calloch, M. Le, Levy, C., Lim, K. E., Lin, Q., Lindemann, S., Lindner, M., Lopes, J. A. M., Lung, K., Undagoitia, T. Marrodan, Massoli, F. V., Fernandez, A. J. Melgarejo, Meng, Y., Molinario, A., Nativ, E., Ni, K., Oberlack, U., Orrigo, S. E. A., Pantic, E., Persiani, R., Plante, G., Priel, N., Rizzo, A., Rosendahl, S., Santos, J. M. F. dos, Sartorelli, G., Schreiner, J., Schumann, M., Lavina, L. Scotto, Scovell, P. R., Selvi, M., Shagin, P., Simgen, H., Teymourian, A., Thers, D., Vitells, O., Wang, H., Weber, M., Weinheimer, C., 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
High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Cosmology and Nongalactic Astrophysics (astro-ph.CO), High Energy Physics - Phenomenology (hep-ph), [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics - Cosmology and Nongalactic Astrophysics, High Energy Physics - Experiment
Abstract

In a recent manuscript (arXiv:1208.5046) Peter Sorensen claims that XENON100's upper limits on spin-independent WIMP-nucleon cross sections for WIMP masses below 10 GeV "may be understated by one order of magnitude or more". Having performed a similar, though more detailed analysis prior to the submission of our new result (arXiv:1207.5988), we do not confirm these findings. We point out the rationale for not considering the described effect in our final analysis and list several potential problems with his study., 3 pages, no figures

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