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2. High Impedance TES Bolometers for EDELWEISS

Author

Marnieros, S., Armengaud, E., Arnaud, Q., Augier, C., Benoît, A., Bergé, L., Billard, J., Broniatowski, A., Camus, P., Cazes, A., Chapellier, M., Charlieux, F., De Jésus, M., Dumoulin, L., Eitel, K., Fillipini, J.-B., Filosofov, D., Gascon, J., Giuliani, A., Gros, M., Jin, Y., Juillard, A., Kleifges, M., Lattaud, H., Misiak, D., Navick, X.-F., Nones, C., Olivieri, E., Oriol, C., Pari, P., Paul, B., Poda, D., Rozov, S., Salagnac, T., Sanglard, V., Vagneron, L., Yakushev, E., and Zolotarova, A.

Published
2022
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3. First demonstration of 30 eVee ionization energy resolution with Ricochet germanium cryogenic bolometers

Author

Augier, C., Baulieu, G., Belov, V., Bergé, L., Billard, J., Bres, G., Bret, J. -L., Broniatowski, A., Calvo, M., Cazes, A., Chaize, D., Chala, M., Chapellier, M., Chaplinsky, L., Chemin, G., Chen, R., Colas, J., Cudmore, E., De Jesus, M., de Marcillac, P., Dumoulin, L., Exshaw, O., Ferriol, S., Figueroa-Feliciano, E., Filippini, J. -B., Formaggio, J. A., Fuard, S., Gascon, J., Giuliani, A., Goupy, J., Goy, C., Guerin, C., Guy, E., Harrington, P., Hertel, S. A., Heusch, M., Hong, Z., Ianigro, J. -C., Jin, Y., Juillard, A., Karaivanov, D., Kazarcev, S., Lamblin, J., Lattaud, H., Li, M., Lubashevskiy, A., Marnieros, S., Martini, N., Mayer, D. W., Minet, J., Monfardini, A., Mounier, F., Novati, V., Olivieri, E., Oriol, C., Mateo, L. Ovalle, Patel, P. K., Perbet, E., Pinckney, H. D., Poda, D. V., Ponomarev, D., Rarbi, F., Real, J. -S., Redon, T., Reyes, F. C., Robert, A., Rozov, S., Rozova, I., Scorza, S., Schmidt, B., Shevchik, Ye., Soldner, T., Stachurska, J., Stutz, A., Vagneron, L., Van De Pontseele, W., Vezzu, F., Winslow, L., Yakushev, E., Zinatulina, D., Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Electronique (NEEL - ElecLab), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Cryogénie (NEEL - Cryo), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Institut Laue-Langevin (ILL), Hélium : du fondamental aux applications (NEEL - HELFA), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), and Ricochet

Subjects
electron, design, energy resolution, FOS: Physical sciences, dark matter, search for, bolometer, recoil, ionization, site, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), neutrino nucleus, CDMS, detector, electroweak interaction, new physics, background, electronics, scattering, nucleus, resolution, antineutrino, buildings, coherence, germanium, EDELWEISS, cryogenics, technology, nuclear reactor, Astrophysics - Instrumentation and Methods for Astrophysics, performance, energy
Abstract

The future Ricochet experiment aims to search for new physics in the electroweak sector by measuring the Coherent Elastic Neutrino-Nucleus Scattering process from reactor antineutrinos with high precision down to the sub-100 eV nuclear recoil energy range. While the Ricochet collaboration is currently building the experimental setup at the reactor site, it is also finalizing the cryogenic detector arrays that will be integrated into the cryostat at the Institut Laue Langevin in early 2024. In this paper, we report on recent progress from the Ge cryogenic detector technology, called the CryoCube. More specifically, we present the first demonstration of a 30~eVee (electron equivalent) baseline ionization resolution (RMS) achieved with an early design of the detector assembly and its dedicated High Electron Mobility Transistor (HEMT) based front-end electronics. This represents an order of magnitude improvement over the best ionization resolutions obtained on similar heat-and-ionization germanium cryogenic detectors from the EDELWEISS and SuperCDMS dark matter experiments, and a factor of three improvement compared to the first fully-cryogenic HEMT-based preamplifier coupled to a CDMS-II germanium detector. Additionally, we discuss the implications of these results in the context of the future Ricochet experiment and its expected background mitigation performance., Comment: 10 pages, 5 figures, 1 table

Published
2023

4. Search for sub-GeV dark matter via the Migdal effect with an EDELWEISS germanium detector with NbSi transition-edge sensors

Author

Armengaud, E., Arnaud, Q., Augier, C., Benoît, A., Bergé, L., Billard, J., Broniatowski, A., Camus, P., Caze, A., Chapellier, M., Charlieux, F., de Jésus, M., Dumoulin, L., Eitel, K., Filippini, J.B., Filosofov, D., Gascon, J., Giuliani, A., Gros, M., Guy, E., Jin, Y., Juillard, A., Kleifges, M., Lattaud, H., Marnieros, S., Misiak, D., Navick, X.F., Nones, C., Olivieri, E., Oriol, C., Pari, P., Paul, B., Poda, D., Rozov, S., Salagnac, T., Sanglard, V., Vagneron, L., Yakushev, E., Zolotarova, A., Kavanagh, B.J., Agence Nationale de la Recherche (France), Université de Lyon, Russian Foundation for Basic Research, European Commission, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Research Council, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Cryogénie (NEEL - Cryo), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Cryogénie (LC), Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), and EDELWEISS

Subjects
background, resolution, GeV, sensitivity, dark matter, particle: interaction, thermal, EDELWEISS, cryogenics, electron: recoil: energy, ionization, germanium: detector, phonon, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

The EDELWEISS collaboration reports on the search for dark matter particle interactions via Migdal effect with masses between 32MeV⋅c−2 to 2 GeV⋅c−2 using a 200 g cryogenic Ge detector sensitive to simultaneously heat and ionization signals and operated underground at the Laboratoire Souterrain de Modane in France. The phonon signal was read out using a transition edge sensor made of a NbSi thin film. The detector was biased at 66 V in order to benefit from the Neganov-Trofimov-Luke amplification and resulting in a resolution on the energy of electron recoils of 4.46eVee (102.58 eV at 66 V) and an analysis threshold of 30eVee. The sensitivity is limited by a dominant background not associated to charge creation in the detector. The search constrains a new region of parameter space for cross sections down to 10−29cm2 and masses between 32 and 100MeV⋅c−2. The achieved low threshold with the NbSi sensor shows the relevance of its use for out-of-equilibrium phonon sensitive devices for low-mass dark matter searches., The EDELWEISS project is supported in part by the French Agence Nationale pour la Recherche (ANR) and the LabEx Lyon Institute of Origins (ANR-10-LABX0066) of the Universite de Lyon within the program “Investissements d’Avenir” (ANR-11-IDEX-00007), by the P2IO LabEx(ANR-10-LABX-0038)inthe framework “Investissements d’Avenir” (ANR-11-IDEX-0003-01) managed by the ANR (France), and the Russian Foundation for Basic Research (Grant No. 18-0200159). This project has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 838537. B.J.K. thanks the Spanish Agencia Estatal de Investigación (AEI, MICIU) for the support to the Unidad de Excelencia María de Maeztu Instituto de Física de Cantabria, Ref. MDM-2017-0765.

Published
2022

5. High Impedance TES Bolometers for EDELWEISS.

Author

Marnieros, S., Armengaud, E., Arnaud, Q., Augier, C., Benoît, A., Bergé, L., Billard, J., Broniatowski, A., Camus, P., Cazes, A., Chapellier, M., Charlieux, F., De Jésus, M., Dumoulin, L., Eitel, K., Fillipini, J.-B., Filosofov, D., Gascon, J., Giuliani, A., and Gros, M.

Subjects
*BOLOMETERS, *GERMANIUM detectors, *SUPERCONDUCTING transitions, *IMPEDANCE matching, *DARK matter, *THERMISTORS, *NEUTRINOLESS double beta decay, *SURFACE plasmon resonance
Abstract

The EDELWEISS collaboration aims for direct detection of light dark matter using germanium cryogenic detectors with low threshold phonon sensor technologies and efficient charge readout designs. We describe here the development of Ge bolometers equipped with high impedance thermistors based on a NbxSi1−x TES alloy. High aspect ratio spiral designs allow the TES impedance to match with JFET or HEMT front-end amplifiers. We detail the behavior of the superconducting transition properties of these sensors and the detector optimization in terms of sensitivity to a-thermal phonons. We report preliminary results of a 200 g Ge detector that was calibrated using 71Ge activation by neutrons at the LSM underground laboratory. [ABSTRACT FROM AUTHOR]

Published
2023
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8. Latest Results from the EDELWEISS WIMP Search

Author

The EDELWEISS Collaboration, Chardin, G., Benoît, A., Bergé, L., Broniatowski, A., Chabert, L., Chambon, B., Chapellier, M., Charvin, P., De Jésus, M., Deschamps, H., Di Stefano, P., Drain, D., Dumoulin, L., Fiorucci, S., Gascon, J., Gerbier, G., Gerlic, E., Goldbach, C., Goyot, M., Gros, M., Hadjout, J. P., Hervé, S., Juillard, A., de Lesquen, A., Mallet, J., Marnieros, S., Martineau, O., Mosca, L., Navick, X.-F., Nollez, G., Pari, P., Riccio, C., Sanglard, V., Schoeffel, L., Stern, M., Vagneron, L., and Klapdor-Kleingrothaus, Hans Volker, editor

Published
2004
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9. Dark Matter Search in the EDELWEISS Experiment

Author

Juillard, A., Benoit, A., Bergé, L., Bouvier, R., Broniatowski, A., Caussignac, M., Chabert, L., Chambon, B., Chapellier, M., Chardin, G., Charvin, P., De Jésus, M., Di Stefano, P., Drain, D., Dumoulin, L., Gascon, J., Gerbier, G., Goldbach, C., Goyot, M., Gros, M., Hadjout, J. P., Hervé, S., de Lesquen, A., Loidl, M., Mallet, J., Marnieros, S., Martin, M., Martineau, O., Mirabolfathi, N., Mosca, L., Navick, X.-F., Nollez, G., Pari, P., Riccio, C., Rodenas, H., Shoeffel, L., Stern, M., Vagneron, L., Klapdor-Kleingrothaus, H. V., editor, and Viollier, R. D., editor

Published
2002
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10. Observation of a nuclear recoil peak at the 100 eV scale induced by neutron capture

Author

CRAB Collaboration, NUCLEUS Collaboration, Abele, H., Angloher, G., Bento, A., Canonica, L., Cappella, F., Cardani, L., Casali, N., Cerulli, R., Chalil, A., Chebboubi, A., Colantoni, I., Crocombette, J. -P., Cruciani, A., Del Castello, G., Roccagiovine, M. del Gallo, Desforge, D., Doblhammer, A., Dumonteil, E., Dorer, S., Erhart, A., Fuss, A., Friedl, M., Garai, A., Ghete, V. M., Giuliani, A., Goupy, C., Gunsing, F., Hauff, D., Jeanneau, F., Jericha, E., Kaznacheeva, M., Kinast, A., Kluck, H., Langenkämper, A., Lasserre, T., Letourneau, A., Lhuillier, D., Litaize, O., Mancuso, M., de Marcillac, P., Marnieros, S., Materna, T., Mauri, B., Mazzolari, A., Mazzucato, E., Neyrial, H., Nones, C., Oberauer, L., Ortmann, T., Ouzriat, A., Pattavina, L., Peters, L., Petricca, F., Poda, D. V., Potzel, W., Pröbst, F., Reindl, F., Rogly, R., Romagnoni, M., Rothe, J., Schermer, N., Schieck, J., Schönert, S., Schwertner, C., Scola, L., Serot, O., Soum-Sidikov, G., Stodolsky, L., Strauss, R., Tamisari, M., Thulliez, L., Tomei, C., Vignati, M., Vivier, M., Wagner, V., Wex, A., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, CEA Cadarache, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), CRAB, and NUCLEUS

Subjects
Physics - Instrumentation and Detectors, detector, nucleus, scattering, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], calibration, dark matter, coherence, cryogenics, recoil, structure, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Nuclear Experiment (nucl-ex), capture, Nuclear Experiment, neutrino nucleus
Abstract

International audience; Coherent elastic neutrino-nucleus scattering and low-mass Dark Matter detectors rely crucially on the understanding of their response to nuclear recoils. We report the first observation of a nuclear recoil peak at around 112 eV induced by neutron capture. The measurement was performed with a CaWO$_4$ cryogenic detector from the NUCLEUS experiment exposed to a $^{252}$Cf source placed in a compact moderator. The measured spectrum is found in agreement with simulations and the expected peak structure from the single-$\gamma$ de-excitation of $^{183}$W is identified with 3 $\sigma$ significance. This result demonstrates a new method for precise, in-situ, and non-intrusive calibration of low-threshold experiments.

Published
2022
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14. EXCESS workshop: Descriptions of rising low-energy spectra

Author

Fuss, A., Kaznacheeva, M., Reindl, F., Wagner, F., Adari, Prakruth, Aguilar-Arevalo, Alexis A., Amidei, Dante, Angloher, G., Armengaud, Eric, Augier, C., Balogh, Levente, Banik, S., Baxter, David, Beaufort, C., Beaulieu, G., Belov, V., Gal, Y. Ben, Benato, Giovanni, Benoît, Alain, Bento, Antonio, Bergé, Laurent, Bertolini, Andrea, Bhattacharyya, R., Billard, J., Bloch, Itay M., Botti, A., Breier, Robert, Bres, G., Bret, J-.L., Broniatowski, A., Brossard, Alexis, Bucci, Carlo, Bunker, Raymond, Cababie, M., Calvo, M., Camus, P., Cancelo, G., Canonica, Lucia, Cappella, Fabio, Cardani, Laura, Caron, Jean-François, Casali, N., del Castello, G., Cazes, Aurélie, Cerulli, Riccardo, Vergara, B.A. Cervantes, Chaize, D., Chapellier, M., Chaplinsky, L., Charlieux, F., Chaudhuri, M., Chavarria, Alvaro E., Chemin, G., Chen, Ran, Chen, Hao, Chierchie, F., Colantoni, I., Colas, J., Cooley, Jodi, Coquillat, Jean-Marie, Corcoran, Emily, Crawford, S., Crisler, Michael, Cruciani, Angelo, Cushman, Priscilla, d'Addabbo, Antonio, d'Olivo, Juan Carlos, Dastgheibi-Fard, A., Jésus, Maria De, Deng, Y., Dent, James, Depaoli, Eliana, Dering, Koby, Dharani, Sukeerthi, Di Lorenzo, S., Drlica-Wagner, Alex, Dumoulin, Louis, Durnford, Daniel, Dutta, Bhaskar, Einfalt, L., Erb, Anna, Erhart, A., Essig, Rouven, Estrada, Juan, Etzion, Erez, Exshaw, O., Favela-Perez, F., von Feilitzsch, F., Moroni, Guillermo Fernandez, Iachellini, Nahuel Ferreiro, Ferriol, S., Fichtinger, S., Figueroa-Feliciano, Enectalí, Filippini, J.-B., Filosofov, Dmitry, Formaggio, Joseph A., Friedl, Markus, Fuard, S., Fuchs, Dominik, Gaïor, R., Garai, Abhijit, Garrah, Carter, Gascon, J., Gerbier, Gilles, Ghaith, Muad, Ghete, V.M., Gift, Daniel, Giomataris, I., Giroux, Guillaume, Giuliani, A., Gorel, Pierre, Gorla, Paolo, Goupy, C., Goupy, J., Goy, C., Gros, M., Gros, Philippe, Guardincerri, Yann, Guerin, C., Guidi, Vincenzo, Guillaudin, O., Gupta, S., Guy, E., Harrington, Patrick, Hauff, D., Heine, S.T., Hertel, Scott A., Holland, Stephen, Hong, Z., Hoppe, Eric W., Hossbach, Todd W., Ianigro, J.-C., Iyer, Vivek, Jastram, Andrew, Ješkovský, Miroslav, Jin, Y., Jochum, Josef, Johnston, J.P., Juillard, A., Karaivanov, Dimitar, Kashyap, V., Katsioulas, Ioannis, Kazarcev, S., Kelly, Fiona, Kilminster, B., Kinast, Angelina, Klinkenberg, L., Kluck, Holger, Knights, Patrick, Korn, Yaron, Kraus, Hans, von Krosigk, Belina, Kubik, Andrew, Kurinsky, N.A., Lamblin, Jacob, Langenkämper, Alexander, Langrock, S., Lasserre, Thierry, Lattaud, H., Lautridou, P., Lawson, Ian, Lee, S.J., Lee, M., Letessier-Selvon, Antoine, Lhuillier, D., Li, M., Lin, Y.-T., Lubashevskiy, Alexey, Mahaparta, Rupak, Mahapatra, R., Maludze, Sandro, Mancuso, Michele, Manthos, Ioannis, Marini, Laura, Marnieros, S., Martin, Ryan D., Matalon, Ariel, Matthews, J., Mauri, B., Mayer, D.W., Mazzolari, Andrea, Mazzucato, E., Theenhausen, Hanno Meyer Zu, Michielin, E., Minet, J., Mirabolfathi, Nader, Mirbach, K. V., Misiak, Dimitri, Mitra, P., Mocellin, J-.L., Mohanty, Bedangadas, Mokina, Valentyna, Mols, J.-P., Monfardini, Alessandro, Mounier, F., Munagavalasa, Sravan, Muraz, Jean-François, Navick, X.-F., Neep, Thomas, Neog, Himangshu, Neyrial, H., Nikolopoulos, Kostas, Nilima, Athoy, Nones, C., Novati, Valentina, O'Brien, Paul, Oberauer, L., Olivieri, E., Olmi, Alessandro, Olmi, M., Onillon, A., Oriol, C., Orly, A., Orrell, John L., Ortmann, T., Overman, C.T., Pagliarone, Carmine Elvezio, Palušová, Veronika, Pari, P., Patel, P.K., Pattavina, Luca, Petricca, Federica, Piers, Alexander, Pinckney, Harold D., Piro, Marie-Cécile, Platt, Mark, Poda, D., Ponomarev, Dmitry, Potzel, Walter, Povinec, Pavel, Pröbst, F., Privitera, P., Pucci, F., Ramanathan, K., Real, J.-S., Redon, T., Ren, R., Robert, Adeline, Rocha, Julia Da, Rodrigues, D., Rogly, R., Rothe, Johannes, Rowe, Noah, Rozov, Sergey, Rozova, I., Saab, Tarek, Saffold, Nathan, Salagnac, T., Sander, Joel, Sanglard, Veronique, Santos, D., Sarkis, Youssef, Savu, V., Savvidis, G., Savvidis, I., Schönert, S., Schäffner, Karoline, Schermer, Nicole, Schieck, Jochen, Schmidt, Benjamin, Schmiedmayer, D., Schwertner, C., Scola, L., Settimo, Mariangela, Shevchik, Ye., Sibille, Valérian, Sidelnik, Ivan, Singal, Aman, Smida, Radomir, Haro, Miguel Sofo, Soldner, Torsten, Stachurska, Juliana, Stahlberg, Martin, Stefanazzi, Leandro, Stodolsky, Leo, Strandhagen, Christian, Strauss, R., Stutz, A., Thomas, R., Thompson, A., Tiffenberg, Javier, Tomei, Claudia, Traina, M., Uemura, Sho, Usherov, I., Vagneron, L., Pontseele, Wouter van De, de Sola Fernández, Francisco Andrés Vázquez, Vidal, M., Vignati, M., Virto, A.L., Vivier, M., Volansky, Tomer, Wagner, V., Walker, Joel, Ward, R., Watkins, Samuel L., Wex, A., Willers, Michael, Wilson, M.J., Winslow, Lindley, Yakushev, Evgeny, Yu, T.-T., Zampaolo, M., Zaytsev, Alexander, Zema, Vanessa, Zinatulina, Daniya, Zolotarova, A., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Electronique (NEEL - ElecLab), Cryogénie (NEEL - Cryo), Institut Laue-Langevin (ILL), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), and Institut Rayonnement Matière de Saclay (IRAMIS)

Subjects
CDMS, Physics - Instrumentation and Detectors, background, collective, energy spectrum, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), DAMIC, sensitivity, dark matter, EDELWEISS, CRESST, CONNIE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the significant impact of this excess on the dark matter or neutrino sensitivity of these experiments, a collective effort has been started to share the knowledge about the individual observations. For this, the EXCESS Workshop was initiated. In its first iteration in June 2021, ten rare event search collaborations contributed to this initiative via talks and discussions. The contributing collaborations were CONNIE, CRESST, DAMIC, EDELWEISS, MINER, NEWS-G, NUCLEUS, RICOCHET, SENSEI and SuperCDMS. They presented data about their observed energy spectra and known backgrounds together with details about the respective measurements. In this paper, we summarize the presented information and give a comprehensive overview of the similarities and differences between the distinct measurements. The provided data is furthermore publicly available on the workshop's data repository together with a plotting tool for visualization., 44 pages, 20 figures; Editors: A. Fuss, M. Kaznacheeva, F. Reindl, F. Wagner; updated copyright statements and funding information

Published
2021

21. First germanium-based constraints on sub-MeV Dark Matter with the EDELWEISS experiment

Author

EDELWEISS Collaboration, Arnaud, Q., Armengaud, E., Augier, C., Beno��t, A., Berg��, L., Billard, J., Broniatowski, A., Camus, P., Cazes, A., Chapellier, M., Charlieux, F., De J��sus, M., Dumoulin, L., Eitel, K., Elkhoury, E., Fillipini, J. -B., Filosofov, D., Gascon, J., Giuliani, A., Gros, M., Jin, Y., Juillard, A., Kleifges, M., Lattaud, H., Marnieros, S., Misiak, D., Navick, X. -F., Nones, C., Olivieri, E., Oriol, C., Pari, P., Paul, B., Poda, D., Rozov, S., Salagnac, T., Sanglard, V., Siebenborn, B., Vagneron, L., Weber, M., Yakushev, E., Zolotarova, A., Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut Rayonnement Matière de Saclay (IRAMIS), EDELWEISS, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay, Hélium : du fondamental aux applications (NEEL - HELFA), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Cryogénie (NEEL - Cryo), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Institut für kernphysik [Eggenstein-Leopoldshafen] (IKP), Karlsruher Institut für Technologie (KIT), Laboratory of Nuclear Problems, JINR, Joint Institut of Nuclear Research, Laboratoire de Cryogénie (LC), Service de physique de l'état condensé (SPEC - UMR3680), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institute of Radio Frequency Engineering and Electronics [Karlsruhe] (IHE), and Karlsruhe Institute of Technology (KIT)

Subjects
electron, Photon, Physics - Instrumentation and Detectors, dark matter: interaction, detector: cryogenics, Dark matter, General Physics and Astronomy, chemistry.chemical_element, FOS: Physical sciences, Germanium, charge: resolution, Electron, EDELWEISS, Parameter space, Gravitation and Astrophysics, 01 natural sciences, Dark photon, Nuclear physics, S030DE5, 5/3, 0103 physical sciences, [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, Range (particle radiation), photon, Astrophysics::Instrumentation and Methods for Astrophysics, S029HPH, Instrumentation and Detectors (physics.ins-det), Astrophysics - Astrophysics of Galaxies, particle: interaction, Automatic Keywords, chemistry, Astrophysics of Galaxies (astro-ph.GA), Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], mixing: kinetic
Abstract

The EDELWEISS collaboration has performed a search for Dark Matter (DM) particles interacting with electrons using a 33.4 g Ge cryogenic detector operated underground at the LSM. A charge resolution of 0.53 electron-hole pairs (RMS) has been achieved using the Neganov-Trofimov-Luke amplification with a bias of 78 V. We set the first Ge-based constraints on sub-MeV/c$^{2}$ DM particles interacting with electrons, as well as on dark photons down to 1 eV/c$^2$. These are competitive with other searches. In particular, new limits are set on the kinetic mixing of dark photon DM in a so far unconstrained parameter space region in the 6 to 9 eV/c$^2$ mass range. These results demonstrate the high relevance of cryogenic Ge detectors for the search of DM interactions producing eV-scale electron signals., Comment: 6 pages, 4 figures, corrected typos

Published
2020
Full Text
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22. Searching for low-mass dark matter particles with a massive Ge bolometer operated above ground

Author

Armengaud, E., Augier, C., Benoît, A., Benoit, A., Bergé, L., Billard, J., Broniatowski, A., Camus, P., Cazes, A., Chapellier, M., Charlieux, F., Ducimetière, D., Dumoulin, L., Eitel, K., Filosofov, D., Gascon, J., Giuliani, A., Gros, M., De Jésus, M., Jin, Y., Juillard, A., Kleifges, M., Maisonobe, R., Marnieros, S., Misiak, D., Navick, X.-F., Nones, C., Olivieri, E., Oriol, C., Pari, P., Paul, B., Poda, D., Queguiner, E., Rozov, S., Sanglard, V., Siebenborn, B., Vagneron, L., Weber, M., Yakushev, E., Zolotarova, A., Kavanagh, B.J., GRAPPA (ITFA, IoP, FNWI), IoP (FNWI), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut Rayonnement Matière de Saclay (IRAMIS), EDELWEISS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Hélium : du fondamental aux applications (NEEL - HELFA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Cryogénie (NEEL - Cryo)

Subjects
Physics - Instrumentation and Detectors, detector: cryogenics, Dark matter, energy resolution, FOS: Physical sciences, chemistry.chemical_element, S030DI5, Context (language use), Cosmic ray, Germanium, EDELWEISS, 01 natural sciences, 7. Clean energy, Cosmology, law.invention, thermal, Nuclear physics, energy: threshold, particle: massive, bolometer, cosmic rays, law, 0103 physical sciences, surface, Experiments in gravity, Neutron, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Nuclear Experiment, Instrumentation and Methods for Astrophysics (astro-ph.IM), nucleus: recoil, Physics, cross section, S030DP5, 010308 nuclear & particles physics, shielding, background, dark matter: mass, Bolometer, Instrumentation and Detectors (physics.ins-det), Astrophysics - Astrophysics of Galaxies, S030DN5, chemistry, Astrophysics of Galaxies (astro-ph.GA), germanium: target, Astrophysics - Instrumentation and Methods for Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], cosmology
Abstract

The EDELWEISS collaboration has performed a search for dark matter particles with masses below the GeV-scale with a 33.4-g germanium cryogenic detector operated in a surface lab. The energy deposits were measured using a neutron-transmutation-doped Ge thermal sensor with a 17.7~eV (RMS) baseline heat energy resolution leading to a 60~eV analysis energy threshold. Despite a moderate lead shielding and the high-background environment, the first sub-GeV spin-independent dark matter limit based on a germanium target has been achieved. The experiment provides the most stringent, nuclear recoil based, above-ground limit on spin-independent interactions above 600~MeV/c$^{2}$. The experiment also provides the most stringent limits on spin-dependent interactions with protons and neutrons below 1.3~GeV/c$^{2}$. Furthermore, the dark matter search results were studied in the context of Strongly Interacting Massive Particles, taking into account Earth-shielding effects, for which new regions of the available parameter space have been excluded. Finally, the dark matter search has also been extended to interactions via the Migdal effect, resulting for the first time in the exclusion of particles with masses between 45 and 150~MeV/c$^{2}$ with spin-independent cross sections ranging from $10^{-29}$ to $10^{-26}$~cm$^2$., 16 pages, 8 figures. New figure added for Spin-Dependent interactions. Accepted in Phys. Rev. D

Published
2019

23. Axion searches with the EDELWEISS-II experiment

Author

Armengaud, E, Arnaud, Q, Augier, C, Benoit, A, Berge, L, Bergmann, T, Bluemer, J, Broniatowski, A, Brudanin, V, Camus, P, Cazes, A, Censier, B, Chapellier, M, Charlieux, F, Couedo, F, Coulter, P, Cox, GA, de Boissiere, T, De Jesus, M, Dolgorouky, Y, Drillien, AA, Dumoulin, L, Eitel, K, Filosofov, D, Fourches, N, Gascon, J, Gerbier, G, Gros, M, Hehn, L, Henry, S, Herve, S, Heuermann, G, Holtzer, N, Humbert, V, Juillard, A, Kefelian, C, Kleifges, M, Kluck, H, Kozlov, V, Kraus, H, Kudryavtsev, VA, Le Sueur, H, Mancuso, M, Marrache-Kikuchi, C, Marnieros, S, Menshikov, A, Navick, X-F, Nones, C, Olivieri, E, Pari, P, Paul, B, Piro, MC, Rigaut, O, Robinson, M, Rozov, S, Sanglard, V, Schmidt, B, Siebenborn, B, Tcherniakhovski, D, Tenconi, M, Vagneron, L, Walker, RJ, Weber, M, Yakushev, E, Zhang, X, Collaboration, EDELWEISS, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), CSNSM INSTR, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CSNSM PS1, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), EDELWEISS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
axions, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Solar neutrino, BOUNDS, Dark matter, FOS: Physical sciences, GERMANIUM DETECTORS, EDELWEISS, 01 natural sciences, 7. Clean energy, Nuclear physics, High Energy Physics - Phenomenology (hep-ph), dark matter experiments DARK-MATTER, 0103 physical sciences, CP INVARIANCE, 010306 general physics, Axion, Physics, dark matter detectors, Solar energetic particles, 010308 nuclear & particles physics, Astronomy and Astrophysics, CRYOGENIC DETECTORS, Baryon, High Energy Physics - Phenomenology, SOLAR AXIONS, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], INTERLEAVED ELECTRODES, Neutrino, Lepton, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present new constraints on the couplings of axions and more generic axion-like particles using data from the EDELWEISS-II experiment. The EDELWEISS experiment, located at the Underground Laboratory of Modane, primarily aims at the direct detection of WIMPs using germanium bolometers. It is also sensitive to the low-energy electron recoils that would be induced by solar or dark matter axions. Using a total exposure of up to 448 kg.d, we searched for axion-induced electron recoils down to 2.5 keV within four scenarios involving different hypotheses on the origin and couplings of axions. We set a 95% CL limit on the coupling to photons $g_{A\gamma}

Published
2016

24. Constraints on low-mass WIMPs from the EDELWEISS-III dark matter search

Author

EDELWEISS Collaboration, Armengaud, E., Arnaud, Q., Augier, C., Benoît, A., Bergé, L., Bergmann, T., Billard, J., Blümer, J., de Boissière, T., Bres, G., Broniatowski, A., Brudanin, V., Camus, P., Cazes, A., Chapellier, M., Charlieux, F., Dumoulin, L., Eitel, K., Filosofov, D., Foerster, N., Fourches, N., Garde, G., Gascon, J., Gerbier, G., Giuliani, A., Grollier, M., Gros, M., Hehn, L., Hervé, S., Heuermann, G., Humbert, V., De Jésus, M., Jin, Y., Jokisch, S., Juillard, A., Kéfélian, C., Kleifges, M., Kozlov, V., Kraus, H., Kudryavtsev, V. A., Le-Sueur, H., Lin, J., Mancuso, M., Marnieros, S., Menshikov, A., Navick, X. -F., Nones, C., Olivieri, E., Pari, P., Paul, B., Piro, M. -C., Poda, D. V., Queguiner, E., Robinson, M., Rodenas, H., Rozov, S., Sanglard, V., Schmidt, B., Scorza, S., Siebenborn, B., Tcherniakhovski, D., Vagneron, L., Weber, M., Yakushev, E., Zhang, X., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Matière noire (MANOIR), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Electronique (ElecLab), Cryogénie (Cryo), Laboratoire de photonique et de nanostructures (LPN), Centre National de la Recherche Scientifique (CNRS), Institut Rayonnement Matière de Saclay (IRAMIS), EDELWEISS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Hélium : du fondamental aux applications (NEEL - HELFA), Electronique (NEEL - ElecLab), and Cryogénie (NEEL - Cryo)

Subjects
Particle physics, 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, EDELWEISS, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Elastic scattering, Physics, Range (particle radiation), 010308 nuclear & particles physics, Scattering, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), Weakly interacting massive particles, High Energy Physics::Experiment, Low Mass, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the results of a search for elastic scattering from galactic dark matter in the form of Weakly Interacting Massive Particles (WIMPs) in the 4-30 GeV/$c^2$ mass range. We make use of a 582 kg-day fiducial exposure from an array of 800 g Germanium bolometers equipped with a set of interleaved electrodes with full surface coverage. We searched specifically for $\sim 2.5-20$ keV nuclear recoils inside the detector fiducial volume. As an illustration the number of observed events in the search for 5 (resp. 20) GeV/$c^2$ WIMPs are 9 (resp. 4), compared to an expected background of 6.1 (resp. 1.4). A 90% CL limit of $4.3\times 10^{-40}$ cm$^2$ (resp. $9.4\times 10^{-44}$ cm$^2$) is set on the spin-independent WIMP-nucleon scattering cross-section for 5 (resp. 20) GeV/$c^2$ WIMPs. This result represents a 41-fold improvement with respect to the previous EDELWEISS-II low-mass WIMP search for 7 GeV/$c^2$ WIMPs. The derived constraint is in tension with hints of WIMP signals from some recent experiments, thus confirming results obtained with different detection techniques., Matches published version

Published
2016

25. EURECA Conceptual Design Report

Author

Angloher, G., Armengaud, E., Augier, C., Benoit, A., Bergmann, T., Bluemer, J., Broniatowski, A., Brudanin, V., Camus, P., Cazes, A., Chapellier, M., Coron, N., Cox, G.A., Cuesta, C., Danevich, F.A., de Jesus, M., Dumoulin, L., Eitel, K., Erb, A., Ertl, A., von Feilitzsch, F., Filosofov, D., Fourches, N., Garcia, E., Gascon, J., Gerbier, G., Ginestra, C., Gironnet, J., Giuliani, A., Gros, M., Guetlein, A., Hauff, D., Henry, S., Heuermann, G., Jochum, J., Jokisch, S., Juillard, A., Kister, C., Kleifges, M., Kluck, H., Korolkova, E.V., Kozlov, Y., Kraus, H., Kudryavtsev, V.A., Lanfranchi, J-C., Loaiza, P., Loebell, J., Machulin, I., Marnieros, S., Martinez, M., Menshikov, A., Muenster, A., Navick, X-F., Nones, C., Ortigoza, Y., Pari, P., Petricca, F., Potzel, W., Povinec, P.P., Proebst, F., Puimedon, J., Reindl, F., Robinson, M., Rolon, T., Roth, S., Rottler, K., Rozov, S., Sailer, C., Salinas, A., Sanglard, V., Sarsa, M.L., Schaeffner, K., Schmidt, B., Scholl, S., Schoenert, S., Seidel, W., Siebenborn, B., Sivers, M.V., Strandhagen, C., Strauss, R., Tanzke, A., Tretyak, V.I., Turad, M., Ulrich, A., Usherov, I., Veber, P., Velazquez, M., Villar, J.A., Viraphong, O., Walker, R.J., Wawoczny, S., Weber, M., Willers, M., Wuestrich, M., Yakushev, E., Zhang, X., Zoeller, A., Collaboration, EURECA, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Matière noire (MANOIR), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Cryogénie (Cryo), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Hélium : du fondamental aux applications (NEEL - HELFA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Cryogénie (NEEL - Cryo), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), and Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Cryostat, Direct detection, Dark matter, Cryogenics, 01 natural sciences, 7. Clean energy, EURECA experiment, law.invention, Conceptual design, law, Cryogenic bolometers, 0103 physical sciences, ddc:530, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Aerospace engineering, 010306 general physics, ComputingMilieux_MISCELLANEOUS, Physics, Calorimeter (particle physics), 010308 nuclear & particles physics, business.industry, Bolometer, Electrical engineering, Astronomy and Astrophysics, WIMPs, Semiconductor detector, Space and Planetary Science, European Underground Rare Event Calorimeter Array, business
Abstract

The EURECA (European Underground Rare Event Calorimeter Array) project is aimed at searching for dark matter particles using cryogenic bolometers. The proponents of the present project have decided to pool their strengths and expertise to build a facility to house up to 1000 kg of detectors, EURECA, consisting in the first instance of germanium and CaWO4 crystals. The shielding will be provided through a large water tank in which the cryostat with detectors will be immersed. The EURECA infrastructure will be an essential tool for the community interested in using cryogenic detectors for dark matter searches. Beyond European detectors, it will be designed to host other types of similar cryogenic detectors, requiring millikelvin operating temperatures. In particular, this includes the germanium detectors currently in use by the SuperCDMS team, following the current collaborative work performed by the EURECA and SuperCDMS collaborations. EURECA will have two stages. The first phase aims at a sensitivity of 3 10-10pb and will involve building the infrastructure, cryostat and shielding, and operating 150kg of detectors. The second phase will be completed with 850kg of additional detectors, the relative weight between the different detectors being decided by the collaboration according to the physics reach. A sensitivity of 2.10-11 pb is aimed for atthe second stage. EURECA will ideally benefit from the planned extension of the deepest underground laboratory in Europe - LSM. With a site-independent design, it can also be hosted in other locations at similar or deeper sites such as SNOLAB. © 2014 The Authors.

Published
2014

26. Background studies for the EDELWEISS dark matter experiment

Author

Armengaud, E, Augier, C, Benoit, A, Berge, L, Bergmann, T, Bluemer, J, Broniatowski, A, Brudanin, V, Censier, B, Chapellier, M, Charlieux, F, Couedo, F, Coulter, P, Cox, GA, De Jesus, M, Domange, J, Drilien, A-A, Dumoulin, L, Eitel, K, Filosofov, D, Fourches, N, Gascon, J, Gerbier, G, Gros, M, Henry, S, Herve, S, Heuermann, G, Holtzer, N, Juillard, A, Kleifges, M, Kluck, H, Kozlov, V, Kraus, H, Kudryavtsev, VA, Le Sueur, H, Loaiza, P, Marnieros, S, Menshikov, A, Navick, X-F, Nones, C, Olivieri, E, Pari, P, Paul, B, Rigaut, O, Robinson, M, Rozov, S, Sanglard, V, Schmidt, B, Scorza, S, Siebenborn, B, Semikh, S, Tcherniakhovski, D, Torrento-Coello, AS, Vagneron, L, Walker, RJ, Weber, M, Yakushev, E, Zhang, X, Collaboration, EDELWEISS, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), CSNSM INSTR, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), CSNSM PS1, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), EDELWEISS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Physics, Particle physics, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Dark matter, FOS: Physical sciences, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), EDELWEISS, Neutron radiation, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Recoil, WIMP, 0103 physical sciences, Electromagnetic shielding, Neutron, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Background radiation
Abstract

The EDELWEISS-II collaboration has completed a direct search for WIMP dark matter using cryogenic Ge detectors (400 g each) and 384 kg$\times$days of effective exposure. A cross-section of $4.4 \times 10^{-8}$ pb is excluded at 90% C.L. for a WIMP mass of 85 GeV. The next phase, EDELWEISS-III, aims to probe spin-independent WIMP-nucleon cross-sections down to a few $\times10^{-9}$ pb. We present here the study of gamma and neutron background coming from radioactive decays in the set-up and shielding materials. We have carried out Monte Carlo simulations for the completed EDELWEISS-II setup with GEANT4 and normalised the expected background rates to the measured radioactivity levels (or their upper limits) of all materials and components. The expected gamma-ray event rate in EDELWEISS-II at 20-200 keV agrees with the observed rate of 82 events/kg/day within the uncertainties in the measured concentrations. The calculated neutron rate from radioactivity of 1.0-3.1 events (90% C.L.) at 20-200 keV in the EDELWEISS-II data together with the expected upper limit on the misidentified gamma-ray events ($\le0.9$), surface betas ($\le0.3$), and muon-induced neutrons ($\le0.7$), do not contradict 5 observed events in nuclear recoil band. We have then extended the simulation framework to the EDELWEISS-III configuration with 800 g crystals, better material purity and additional neutron shielding inside the cryostat. The gamma-ray and neutron backgrounds in 24 kg fiducial mass of EDELWEISS-III have been calculated as 14-44 events/kg/day and 0.7-1.4 events per year, respectively. The results of the background studies performed in the present work have helped to select better purity components and improve shielding in EDELWEISS-III to further reduce the expected rate of background events in the next phase of the experiment., Comment: 15 pages, 9 figures, to be published in Astroparticle Physics

Published
2013

27. Controlling the Leakage-Current of Low Temperature Germanium Detectors Using XeF Dry Etching

Author

Marnieros, S., Bergé, L., Broniatowski, A., A. Drillien, A., Dumoulin, L., Holtzer, N., Olivieri, E., C. Piro, M., Rigaut, O., CSNSM PS1, Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM)

Subjects
Low temperature detectors, Charge-ionization bolometers, XeF2 etching, Surface etching, Dark matter, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Ge detector
Abstract

International audience; Ionization detectors, based on the drift and collection of charges in high purity Germanium crystals (HP-Ge), are commonly used for gamma and particle detection. In the field of very low temperature detectors, several major experiments, like EDELWEISS or CDMS, are using such devices combined with a simultaneous measurement of the detector heat pulses, to search for dark matter in the universe. The leakage current between the charge collecting electrodes of the detectors must be kept as low as possible to preserve performance in terms of high resolution and low threshold. We present results concerning the surface treatment of EDELWEISS HP-Ge crystals, aiming at the reduction of their leakage currents at temperatures below 4 K. Among the explored solutions, a post-process dry-etching using XeF (xenon difluoride) gives very promising and reproducible results. The modification of the Ge surface by this treatment and its effect on the low temperature leakage currents are discussed.

Published
2013

28. Muon-induced background in the EDELWEISS dark matter search

Author

The EDELWEISS Collaboration, Schmidt, B., Armengaud, E., Augier, C., Benoit, A., Berg��, L., Bergmann, T., Bl��mer, J., Bres, G., Broniatowski, A., Brudanin, V., Censier, B., Chapellier, M., Charlieux, F., Collin, S., Coulter, P., Cox, G. A., Crauste, O., Domange, J., Dumoulin, L., Eitel, K., Filosofov, D., Fourches, N., Garde, G., Gascon, J., Gerbier, G., Gros, M., Hehn, L., Henry, S., Herv��, S., Heuermann, G., Juillard, A., Kluck, H., Kozlov, V. Y., Kleifges, M., Kraus, H., Kudryavtsev, V. A., Loaiza, P., Marnieros, S., Menshikov, A., Navick, X. -F., Nieder, H., Nones, C., Olivieri, E., Pari, P., Paul, B., Robinson, M., Rodenas, H., Rozov, S., Sanglard, V., Siebenborn, B., Tcherniakhovski, D., Torrent��-Coello, A. S., Vagneron, L., Walker, R. J., Weber, M., Yakushev, E., Zhang, X., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), CSNSM INSTR, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Electronique (NEEL - ElecLab), CSNSM PS1, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Cryogénie (NEEL - Cryo), Matière noire (MANOIR), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Laboratoire Souterrain de Modane (LSM - UMR 6417), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), EDELWEISS, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Hélium : du fondamental aux applications (HELFA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Electronique (ElecLab), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Cryogénie (Cryo), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), and Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Particle physics, Physics - Instrumentation and Detectors, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, EDELWEISS, 01 natural sciences, Nuclear physics, Ionization, 0103 physical sciences, Neutron, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detector array, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, Muon, 010308 nuclear & particles physics, Astronomy and Astrophysics, Instrumentation and Detectors (physics.ins-det), [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Muon flux, Angular dependence, High Energy Physics::Experiment, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

A dedicated analysis of the muon-induced background in the EDELWEISS dark matter search has been performed on a data set acquired in 2009 and 2010. The total muon flux underground in the Laboratoire Souterrain de Modane (LSM) was measured to be $\Phi_{\mu}=(5.4\pm 0.2 ^{+0.5}_{-0.9})$\,muons/m$^2$/d. The modular design of the muon-veto system allows the reconstruction of the muon trajectory and hence the determination of the angular dependent muon flux in LSM. The results are in good agreement with both MC simulations and earlier measurements. Synchronization of the muon-veto system with the phonon and ionization signals of the Ge detector array allowed identification of muon-induced events. Rates for all muon-induced events $\Gamma^{\mu}=(0.172 \pm 0.012)\, \rm{evts}/(\rm{kg \cdot d})$ and of WIMP-like events $\Gamma^{\mu-n} = 0.008^{+0.005}_{-0.004}\, \rm{evts}/(\rm{kg \cdot d})$ were extracted. After vetoing, the remaining rate of accepted muon-induced neutrons in the EDELWEISS-II dark matter search was determined to be $\Gamma^{\mu-n}_{\rm irred} < 6\cdot 10^{-4} \, \rm{evts}/(\rm{kg \cdot d})$ at 90%\,C.L. Based on these results, the muon-induced background expectation for an anticipated exposure of 3000\,\kgd\ for EDELWEISS-3 is $N^{\mu-n}_{3000 kg\cdot d} < 0.6$ events., Comment: 21 pages, 16 figures, Accepted for publication in Astropart. Phys

Published
2013
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29. A search for low-mass WIMPs with EDELWEISS-II heat-and-ionization detectors

Author

EDELWEISS Collaboration, Armengaud, E., Augier, C., Benoît, A., Bergé, L., Bergmann, T., Blümer, J., Broniatowski, A., Brudanin, V., Censier, B., Chapellier, M., Charlieux, F., Couëdo, F., Coulter, P., Cox, G. A., Domange, J., Drillien, A. A., Dumoulin, L., Eitel, K., Filosofov, D., Fourches, N., Gascon, J., Gerbier, G., Gironnet, J., Gros, M., Heuermann, G., Henry, S., Hervé, S., Juillard, A., Kleifges, M., Kluck, H., Kozlov, V., Kraus, H., Kudryavtsev, V. A., Sueur, H. Le, Loaiza, P., Marnieros, S., Menshikov, A., Navick, X. -F., Nones, C., Olivieri, E., Pari, P., Paul, B., Robinson, M., Rozov, S., Sanglard, V., Schmidt, B., Siebenborn, B., Tcherniakhovski, D., Torrento-Coello, A. S., Vagneron, L., Walker, R. J., Weber, M., Yakushev, E., Zhang, X., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), CSNSM INSTR, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), CSNSM PS1, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), EDELWEISS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Nuclear and High Energy Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, EDELWEISS, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), WIMP, Ionization, 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, Nuclear Experiment, Elastic scattering, Physics, 010308 nuclear & particles physics, Scattering, Astrophysics::Instrumentation and Methods for Astrophysics, Instrumentation and Detectors (physics.ins-det), Semiconductor detector, Weakly interacting massive particles, High Energy Physics::Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report on a search for low-energy (E < 20 keV) WIMP-induced nuclear recoils using data collected in 2009 - 2010 by EDELWEISS from four germanium detectors equipped with thermal sensors and an electrode design (ID) which allows to efficiently reject several sources of background. The data indicate no evidence for an exponential distribution of low-energy nuclear recoils that could be attributed to WIMP elastic scattering after an exposure of 113 kg.d. For WIMPs of mass 10 GeV, the observation of one event in the WIMP search region results in a 90% CL limit of 1.0x10^-5 pb on the spin-independent WIMP-nucleon scattering cross-section, which constrains the parameter space associated with the findings reported by the CoGeNT, DAMA and CRESST experiments., PRD rapid communication accepted

Published
2012

30. Final results of the EDELWEISS-II WIMP search using a 4-kg array of cryogenic germanium detectors with interleaved electrodes

Author

Armengaud, E, Augier, C, Benoit, A, Berge, L, Bluemer, J, Broniatowski, A, Brudanin, V, Censier, B, Chardin, G, Chapellier, M, Charlieux, F, Coulter, P, Cox, GA, Defay, X, De Jesus, M, Dolgorouki, Y, Domange, J, Dumoulin, L, Eitel, K, Filosofov, D, Fourches, N, Gascon, J, Gerbier, G, Gironnet, J, Gros, M, Henry, S, Herve, S, Juillard, A, Kluck, H, Kozlov, V, Kraus, H, Kudryavtsev, VA, Loaiza, P, Marnieros, S, Navick, X-F, Nones, C, Olivieri, E, Pari, P, Pattavina, L, Paul, B, Robinson, M, Rozov, S, Sanglard, V, Schmidt, B, Scorza, S, Semikh, S, Torrento-Coello, AS, Vagneron, L, Verdier, M-A, Walker, RJ, Yakushev, E, Collaboration, EDELWEISS, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Rayonnement Matière de Saclay (IRAMIS), EDELWEISS, HELFA - Hélium : du fondamental aux applications, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Hélium : du fondamental aux applications (HELFA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Cryogenic Ge detectors, Nuclear and High Energy Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Physics::Instrumentation and Detectors, Dark matter, FOS: Physical sciences, WIMP searches, chemistry.chemical_element, Germanium, EDELWEISS, 7. Clean energy, 01 natural sciences, Particle detector, High Energy Physics - Experiment, Nuclear physics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], High Energy Physics - Experiment (hep-ex), Recoil, WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, 3. Good health, Semiconductor detector, chemistry, High Energy Physics::Experiment, Nucleon, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The EDELWEISS-II collaboration has completed a direct search for WIMP dark matter with an array of ten 400-g cryogenic germanium detectors in operation at the Laboratoire Souterrain de Modane. The combined use of thermal phonon sensors and charge collection electrodes with an interleaved geometry enables the efficient rejection of gamma-induced radioactivity as well as near-surface interactions. A total effective exposure of 384 kg.d has been achieved, mostly coming from fourteen months of continuous operation. Five nuclear recoil candidates are observed above 20 keV, while the estimated background is 3.0 events. The result is interpreted in terms of limits on the cross-section of spin-independent interactions of WIMPs and nucleons. A cross-section of 4.4x10^-8 pb is excluded at 90%CL for a WIMP mass of 85 GeV. New constraints are also set on models where the WIMP-nucleon scattering is inelastic., 23 pages, 5 figures; matches published version

Published
2011

31. Full Inter-Digitized Detectors For The EDELWEISS-II Dark Matter Search

Author

Marnieros, S., Armengaud, E., Augier, C., Berge, L., Benoit, Angélique, Besida, O., Blumer, J., Broniatowski, A., Chantelauze, A., Chapellier, M., Chardin, G., Charlieux, F., Collin, S., Crauste, O., Defay, X., De Jesus, M., Di Stefano, P., Dolgorouki, Y., Domange, J., Dumoulin, L., Eitel, K., Gascon, J., Gerbier, G., Gros, M., Hannawald, M., Herve, S., Juillard, A., Kluck, H., Kozlov, V., Lemrani, R., Lubashevskiy, A., Marrache, C., Ricci, Y., Sanglard, V., Scorza, S., Semikh, S., A. Verdier, M., Vagneron, L., Yakushev, E., Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Matière noire (MANOIR), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), EDELWEISS, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
EDELWEISS, Dark Matter, Cryogenic detectors, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]
Abstract

International audience; A new design for the Ge bolometers of the EDELWEISS project is described here, based on innovative interleaved charge collection electrodes with high background discrimination capabilities. The measured surface event rejection is compatible with WIMP sensitivity levels down to 10(-) 9 picobarn (pb). Use of interleaved electrodes on the overall surface of the Ge crystal, including its lateral surface, results to a high fiducial volume of the order of 80%. Electronic setup is fairly simple with a total of five JFET based read-out amplifiers, one for the NTD-Ge heat channel and four for the ionization signal. Fabrication process is quite simple and the design is easily scalable to higher mass bolometers (1 kg Ge crystal), making it very appealing for the future 1 ton scale EUREKA Dark Matter experiment.

Published
2009

32. First results of the EDELWEISS-II WIMP search using Ge cryogenic detectors with interleaved electrodes

Author

Armengaud, E., Augier, C., Benoit, A., Berge, L., Besida, O., Blumer, J., Broniatowski, A., Chantelauze, A., Chapellier, M., Chardin, G., Charlieux, F., Collin, S., Defay, X., De Jesus, M., Di Stefano, P., Dolgorouki, Y., Domange, J., Dumoulin, L., Eitel, K., Gascon, J., Gerbier, G., Gros, M., Hannawald, M., Herve, S., Juillard, A., Kluck, H., Kozlov, V., Lemrani, R., Loaiza, P., Lubashevskiy, A., Marnieros, S., Navick, X-F., Olivieri, E., Pari, P., Paul, B., Rozov, S., Sanglard, V., Scorza, S., Semikh, S., Torrento-Coello, A. S., Vagneron, L., Verdier, M-A., Yakushev, E., Collaboration, the EDELWEISS, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Rayonnement Matière de Saclay (IRAMIS), EDELWEISS, HELFA - Hélium : du fondamental aux applications, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Hélium : du fondamental aux applications (HELFA), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Cryogenic Ge detectors, Particle physics, Nuclear and High Energy Physics, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Cosmology and Nongalactic Astrophysics (astro-ph.CO), Physics::Instrumentation and Detectors, Dark matter, WIMP searches, FOS: Physical sciences, WIMP Argon Programme, EDELWEISS, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Recoil, WIMP, 0103 physical sciences, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Physics, SIMPLE (dark matter experiment), 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astrophysics - Astrophysics of Galaxies, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Weakly interacting massive particles, Astrophysics of Galaxies (astro-ph.GA), High Energy Physics::Experiment, Cryogenic Dark Matter Search, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The EDELWEISS-II collaboration has performed a direct search for WIMP dark matter with an array of ten 400 g heat-and-ionization cryogenic detectors equipped with interleaved electrodes for the rejection of near-surface events. Six months of continuous operation at the Laboratoire Souterrain de Modane have been achieved. The observation of one nuclear recoil candidate above 20 keV in an effective exposure of 144 kgd is interpreted in terms of limits on the cross-section of spin-independent interactions of WIMPs and nucleons. A cross-section of 1.0x10^-7 pb is excluded at 90%CL for a WIMP mass of 80 GeV/c2. This result demonstrates for the first time the very high background rejection capabilities of these simple and robust detectors in an actual WIMP search experiment., Comment: 14 pages, 3 figures. Submitted to Phys Lett. B

Published
2009
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33. EURECA -- the European future of cryogenic dark matter searches

Author

Kraus, H, Bauer, M, Benoit, A, Bluemer, J, Broniatowski, A, Camus, P, Chantelauze, A, Chapellier, M, Chardin, G, Christ, P, Coppi, C, De Jesus, M, De Lesquen, A, Deschamps, H, Di Stefano, P, Dumoulin, L, Eitel, K, von Feilitzsch, F, Fesquet, M, Gascon, J, Gerbier, G, Goldbach, C, Gros, M, Hauff, D, Henry, S, Horn, M, Isaila, C, Kimmerle, M, Jochum, J, Juillard, A, Lemrani, R, Luca, M, Marnieros, S, McGowan, R, Mikhailik, V, Navick, X-F, Niinikoski, T, Nollez, G, Pantic, E, Pari, P, Petricca, F, Potzel, W, Proebst, F, Rau, W, Ritter, F, Rottler, K, Scholl, S, Seidel, W, Sanglard, V, Stern, M, Schwamm, F, Teshima, M, Tolhurst, B, Westphal, W, Wikus, P, Wolf, J, Bottino, A, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Matière noire (MANOIR), Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire de Lyon (IPNL), Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Rayonnement Matière de Saclay (IRAMIS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)

Subjects
Physics, History, Particle physics, 010308 nuclear & particles physics, Dark matter, EDELWEISS, 7. Clean energy, 01 natural sciences, Computer Science Applications, Education, Multi target, WIMP, 0103 physical sciences, European Underground Rare Event Calorimeter Array, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, ComputingMilieux_MISCELLANEOUS
Abstract

EURECA (European Underground Rare Event Calorimeter Array) is a new project, searching for dark matter, with largely the present groups of the CRESST and EDELWEISS experiments and already a few new groups. The aim is to explore scalar cross sections in the 10(-9) - 10(-10) pico-barn region with a target mass of up to one tonne. A major advantage of EURECA is our planned use of more that just one target material (multi target experiment for WIMP identification). In preparation for this large-scale experiment, RandD for EURECA is provided through the current phases of CRESST and EDELWEISS.

Published
2005

34. Calibration of the EDELWEISS Cryogenic Heat-and-ionisation Germanium Detectors for Dark Matter Search

Author

The EDELWEISS Collaboration, Martineau, O., Benoit, A., Berge, L., Broniatowski, A., Chabert, L., Chambon, B., Chapellier, M., Chardin, G., Charvin, P., De Jesus, M., Di Stefano, P., Drain, D., Dumoulin, L., Gascon, J., Gerbier, G., Gerlic, E., Goldbach, C., Goyot, M., Gros, M., Hadjout, J. P., Herve, S., Juillard, A., de Lesquen, A., Loidl, M., Mallet, J., Marnieros, S., Mirabolfathi, N., Mosca, L., Navick, X. -F., Nollez, G., Pari, P., Riccio, C., Sanglard, V., Schoeffel, L., Stern, M., Vagneron, L., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and EDELWEISS

Subjects
Physics, Nuclear and High Energy Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, Dark matter, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Cryogenics, Astrophysics::Cosmology and Extragalactic Astrophysics, EDELWEISS, Astrophysics, 01 natural sciences, Particle detector, Semiconductor detector, Nuclear physics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 29.40.Wks, 07.57.K, 95.35.+d, Ionization, 0103 physical sciences, European Underground Rare Event Calorimeter Array, Cryogenic Dark Matter Search, 010306 general physics, Instrumentation
Abstract

Several aspects of the analysis of the data obtained with the cryogenic heat-and-ionisation Ge detectors used by the EDELWEISS dark matter search experiment are presented. Their calibration, the determination of their energy threshold, fiducial volume and nuclear recoil acceptance are detailed., 27 pages, Latex, 11 figures. Submitted to NIM A

Published
2003

35. Background discrimination capabilities of a heat and ionization germanium cryogenic detector

Author

Di Stefano, P., Benoit, Angélique, Bergé, L., Broniatowski, A., Chambon, B., Chapellier, M., Chardin, G., Charvin, P., Chaumont, J., De Jésus, M., Drain, D., Dumoulin, L., Forget, Philippe, Garoche, P., Gascon, J., Goldbach, C., Gros, M., Juillard, A., De Lesquen, A., L'Hôte, D., Mallet, J., Mangin, J., Marnieros, S., Mirabolfathi, N., Miramonti, L., Mosca, L., Navick, X.F., Nollez, G., Pari, P., Pécourt, S., Simon, E., Stab, L., Stern, M., Torre, J-P., Tourbot, R., Yon, D., Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and EDELWEISS

Subjects
Dark matter, Population, FOS: Physical sciences, Astrophysics, EDELWEISS, 01 natural sciences, law.invention, Nuclear physics, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Recoil, law, Ionization, 0103 physical sciences, Neutron, 010306 general physics, education, Physics, education.field_of_study, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Bolometer, Detector, Astrophysics (astro-ph), Astronomy and Astrophysics, WIMP, cryogenic detector
Abstract

The discrimination capabilities of a 70 g heat and ionization Ge bolometer are studied. This first prototype has been used by the EDELWEISS Dark Matter experiment, installed in the Laboratoire Souterrain de Modane, for direct detection of WIMPs. Gamma and neutron calibrations demonstrate that this type of detector is able to reject more than 99.6% of the background while retaining 95% of the signal, provided that the background events distribution is not biased towards the surface of the Ge crystal. However, the 1.17 kg.day of data taken in a relatively important radioactive environment show an extra population slightly overlapping the signal. This background is likely due to interactions of low energy photons or electrons near the surface of the crystal, and is somewhat reduced by applying a higher charge-collecting inverse bias voltage (-6 V instead of -2 V) to the Ge diode. Despite this contamination, more than 98% of the background can be rejected while retaining 50% of the signal. This yields a conservative upper limit of 0.7 event.day^{-1}.kg^{-1}.keV^{-1}_{recoil} at 90% confidence level in the 15-45 keV recoil energy interval; the present sensitivity appears to be limited by the fast ambient neutrons. Upgrades in progress on the installation are summarized., Comment: Submitted to Astroparticle Physics, 14 pages

Published
2001

36. $$\hbox {H}^{-}$$ -Like Centers and Space-Charge Effects in Cryogenic Germanium Detectors for Dark Matter Search.

Author

Broniatowski, A., Piro, M.-C., Marnieros, S., Dumoulin, L., and Olivieri, E.

Subjects
CRYOGENICS, SPACE-charge limited devices, DARK matter, THERMALLY stimulated currents, DOPING agents (Chemistry)
Abstract

Space-charge build-up phenomena are investigated in germanium detectors for dark matter search, associated with the thermal emission of carriers by the H $$^{-}$$ -like, dopant-related A $$^{+ }$$ and D $$^{-}$$ shallow trap centers. Evidence for such processes follows from a combined study of the time evolution of the pattern of charge sharing between the different collection electrodes of the device, and of the kinetics of carrier emission by the A $$^{+ }$$ and D $$^{- }$$ centers. Implications for detector physics are discussed. [ABSTRACT FROM AUTHOR]

Published
2014
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37. Controlling the Leakage-Current of Low Temperature Germanium Detectors Using XeF $$_{2}$$ Dry Etching.

Author

Marnieros, S., Bergé, L., Broniatowski, A., Drillien, A., Dumoulin, L., Holtzer, N., Olivieri, E., Piro, M., and Rigaut, O.

Subjects
GERMANIUM detectors, STRAY currents, LOW temperatures, PLASMA etching, XENON fluoride lasers, DARK matter
Abstract

Ionization detectors, based on the drift and collection of charges in high purity Germanium crystals (HP-Ge), are commonly used for gamma and particle detection. In the field of very low temperature detectors, several major experiments, like EDELWEISS or CDMS, are using such devices combined with a simultaneous measurement of the detector heat pulses, to search for dark matter in the universe. The leakage current between the charge collecting electrodes of the detectors must be kept as low as possible to preserve performance in terms of high resolution and low threshold. We present results concerning the surface treatment of EDELWEISS HP-Ge crystals, aiming at the reduction of their leakage currents at temperatures below 4 K. Among the explored solutions, a post-process dry-etching using XeF $$_{2}$$ (xenon difluoride) gives very promising and reproducible results. The modification of the Ge surface by this treatment and its effect on the low temperature leakage currents are discussed. [ABSTRACT FROM AUTHOR]

Published
2014
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38. Identification of near surface events using athermal phonon signals in low temperature Ge bolometers for the EDELWEISS experiment

Author

Marnieros, S., Juillard, A., Bergé, L., Collin, S., and Dumoulin, L.

Subjects
*PHONONS, *GERMANIUM diodes, *BOLOMETERS, *ELECTRODES
Abstract

We present a study of a 100 g low temperature Ge detector, allowing identification of surface events down to the energy threshold. The bolometer is fitted with segmented electrodes and two NbSi Anderson insulator thermometric layers. Analysis of the athermal signals amplitudes allows us to identify and reject all events occurring in the first millimeter under the electrodes. [Copyright &y& Elsevier]

Published
2004
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39. Latest results from the EDELWEISS WIMP search

Author

Marnieros, S., Benoit, A., Bergé, L., Broniatowski, A., Censier, B., Chabert, L., Chambon, B., Chapellier, M., Chardin, G., Charvin, P., Jésus, M. De, Stefano, P. Di, Drain, D., Dumoulin, L., Fesquet, M., Fiorucci, S., Gascon, J., Gerbier, G., Gerlic, E., and Goldbach, C.

Subjects
*DARK matter, *PARTICLES (Nuclear physics), *GERMANIUM, *BOLOMETERS
Abstract

The latest results obtained by the EDELWEISS Weakly Interacting Massive Particles (WIMP) direct detection experiment using three heat-and-ionization 320 g germanium bolometers are presented. Presently, the most sensitive WIMP direct detection experiment for WIMP mass >30 GeV, EDELWEISS-I is testing a range of SUSY models compatible with the accelerator constraints. The status and main characteristics of EDELWEISS-II, involving in a first stage 28 germanium bolometers, and able to accommodate up to 120 detectors, will be briefly presented. [Copyright &y& Elsevier]

Published
2004
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40. Development of Ge/NbSi detectors for EDELWEISS-II with identification of near-surface events

Author

Juillard, A., Marnieros, S., Dolgorouky, Y., Bergé, L., Collin, S., Fiorucci, S., Lalu, F., and Dumoulin, L.

Subjects
*DETECTORS, *ELECTRIC resistors, *ENGINEERING instruments, *IONIZATION (Atomic physics)
Abstract

Abstract: The actual limitation of Ge ionization heat cryogenic detectors for direct WIMP detection such as EDELWEISS arises from incomplete charge collection for near-surface events. We present results on Ge/NbSi detectors that are fitted with segmented electrodes and two NbSi Anderson insulator thermometric layers. Three such bolometers were studied in the low-background cryostat of the EDELWEISS collaboration in the LSM: analysis of the athermal signals allows us to identify and reject events occurring in the first millimeter under the electrodes. [Copyright &y& Elsevier]

Published
2006
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41. Coherent elastic neutrino-nucleus scattering: Terrestrial and astrophysical applications

Author

Abdullah, M., Abele, H., Akimov, D., Angloher, G., Aristizabal Sierra, D., Augier, C., Balantekin, A. B., Balogh, L., Barbeau, P. S., Baudis, L., Baxter, A. L., Beaufort, C., Beaulieu, G., Belov, V., Bento, A., Berge, L., Bernardi, I. A., Billard, J., Bolozdynya, A., Bonhomme, A., Bres, G., Bret, J- L., Broniatowski, A., Brossard, A., Buck, C., Cadeddu, M., Calvo, M., Canonica, L., Cappella, F., Cardani, L., Casali, N., Cazes, A., Cerulli, R., Chaize, D., Chang, C., Chapellier, M., Chaplinsky, L., Chemin, G., Chen, R., Colantoni, I., Colas, J., Coloma, P., Corcoran, E. C., Crawford, S., Cruciani, A., Dastgheibi Fard, A., Jesus, M., Marcillac, P., Romeri, V., Del Castello, G., Del Gallo Roccagiovine, M., Delicato, D., Demarteau, M., Deng, Y., Dent, J. B., Denton, P. B., Dering, K., Doblhammer, A., Dordei, F., Dorer, S., Dumoulin, L., Dunford, D., Dutta, B., Erhart, A., Exshaw, O., Ferriol, S., Figueroa-Feliciano, E., Filippini, J. -B, Flores, L. J., Formaggio, J. A., Friedl, M., Fuard, S., Gao, F., Garai, A., Garces, E. A., Gascon, J., Gehrlein, J., Gerbier, G., Ghete, V. M., Giomataris, I., Giroux, G., Giuliani, A., Giunti, C., Gorel, P., Goupy, C., Goupy, J., Goy, C., Green, M. P., Gros, M., Guerin, C., Guidi, V., Guillaudin, O., Guy, E., Ha, C., Hau, D., Hakenmuller, J., Harrington, P. M., Hedges, S., Heine, S. T., Hertel, S., Heusch, M., Hoarau, C., Hoferichter, M., Hoppe, E. W., Hong, Z., Horiuchi, S., Huber, P., Ianigro, J. -C, Jachowicz, N., Jericha, E., Jin, Y., Johnston, J. P., Juillard, A., Katsioulas, I., Kazarcev, S., Kaznacheeva, M., Kelly, F., Kelly, K. J., Kim, D., Kinast, A., Klinkenberg, L., Kluck, H., Knights, P., Ko, Y. J., Kosmas, T. S., Kwon, L., Lamblin, J., Lang, R. F., Langenkamper, A., Langrock, S., Lasserre, T., Lattaud, H., Lautridou, P., Lee, H. S., Lenardo, B. G., Lhuillier, D., Li, M., Li, S. C., Li, Y. F., Li, Z., Lindner, M., Liu, J., Loomba, D., Lubashevskiy, A., Machado, P. A. N., Mancuso, M., Maneschg, W., Marko, D. M., Marnieros, S., Martin, R., Martin, R. D., Mauri, B., Mayer, D. W., Mazzolari, A., Mazzucato, E., Menendez, J., Minet, J., Miranda, O. G., Misiak, D., Mols, J. -P, Monfardini, A., Mounier, F., Muraz, J. -F, Neep, T., Neilson, R., Newby, J., Newstead, J. L., Neyrial, H., Ni, K., Nikolopoulos, K., Nones, C., Norcini, D., Pandey, V., O Brien, P., Ciaran O'Hare, Oberauer, L., Oliver, W., Olivieri, E., Onillon, A., Oriol, C., Ortmann, T., Owen, R., Palladino, K. J., Papoulias, D. K., Park, J. C., Parno, D. S., Patel, P. K., Pattavina, L., Peinado, E., Perbet, E., Peters, L., Petricca, F., Pinckney, H. D., Piro, M. -C, Ponomarev, D., Poda, D., Potzel, W., Probst, F., Pucci, F., Rarbi, F., Rapp, R., Ray, H., Real, J. -S, Reindl, F., Rich, G. C., Ricol, J. -S, Rink, T., Redon, T., Rogly, R., Robert, A., Rothe, J., Rozov, S., Rozova, I., Salagnac, T., Sanchez Garcia, E., Sanchez Garcia, G., Sanders, O., Sanglard, V., Santos, D., Sarkis, Y., Savu, V., Savvidis, G., Savvidis, I., Schermer, N., Schieck, J., Schmidt, B., Schonert, S., Scholberg, K., Schwenk, A., Schwertner, C., Scola, L., Shevchik, Ye, Shin, S., Sibille, V., Shoemaker, I. M., Snowden-I, D. P., Soldner, T., Soum, G., Spooner, N. J. C., Stachurska, J., Stodolsky, L., Strauss, R., Strigari, L. E., Stutz, A., Suh, B. D., Suhonen, J., Tabrizi, Z., Takhistov, V., Thompson, A., Tomei, C., Tortola, M., Tripathi, M., Vagneron, L., Valle, J. W. F., Mirbach, K. V., Ponteseele, W., Vignati, M., Vivier, M., Sola Fernandez, F. Vazquez, Vezzu, F., Vidal, M., Wagner, V., Walker, J. W., Ward, R., Wex, A., Winslow, L., Wong, H. T., Wood, M. H., Xu, J., Yang, L., Yakushev, E., Zampaolo, M., Zettlemoyer, J., Zhang, Y. Y., Zinatulina, D., Institut de Physique des 2 Infinis de Lyon (IP2I Lyon), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Electronique (NEEL - ElecLab), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Cryogénie (NEEL - Cryo), Institut Laue-Langevin (ILL), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Hélium : du fondamental aux applications (NEEL - HELFA), Centre de Nanosciences et de Nanotechnologies [Orsay] (C2N), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de physique subatomique et des technologies associées (SUBATECH), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, and Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)

Subjects
Astrophysics and Astronomy, neutrino: solar, FOS: Physical sciences, dark matter, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), neutrino: atmosphere, neutrino nucleus: elastic scattering, radiative correction, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], neutrino: supernova, numerical calculations, neutrino: interaction, Particle Physics - Phenomenology, High Energy Astrophysical Phenomena (astro-ph.HE), astro-ph.HE, new physics, hep-ex, hep-ph, symmetry: U(1), neutrino: sterile, coherence, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], cesium: iodine, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, Particle Physics - Experiment
Abstract

Coherent elastic neutrino-nucleus scattering (CE$\nu$NS) is a process in which neutrinos scatter on a nucleus which acts as a single particle. Though the total cross section is large by neutrino standards, CE$\nu$NS has long proven difficult to detect, since the deposited energy into the nucleus is $\sim$ keV. In 2017, the COHERENT collaboration announced the detection of CE$\nu$NS using a stopped-pion source with CsI detectors, followed up the detection of CE$\nu$NS using an Ar target. The detection of CE$\nu$NS has spawned a flurry of activities in high-energy physics, inspiring new constraints on beyond the Standard Model (BSM) physics, and new experimental methods. The CE$\nu$NS process has important implications for not only high-energy physics, but also astrophysics, nuclear physics, and beyond. This whitepaper discusses the scientific importance of CE$\nu$NS, highlighting how present experiments such as COHERENT are informing theory, and also how future experiments will provide a wealth of information across the aforementioned fields of physics., Comment: contribution to Snowmasss 2021. Contact authors: P. S. Barbeau, R. Strauss, L. E. Strigari

42. Conceptual design of BabyIAXO, the intermediate stage towards the International Axion Observatory

Author

Abeln, A., Altenm��ller, K., Arguedas Cuendis, S., Armengaud, E., Atti��, D., Aune, S., Basso, S., Berg��, L., Biasuzzi, B., Borges De Sousa, P. T. C., Brun, P., Bykovskiy, N., Calvet, D., Carmona, J. M., Castel, J. F., Cebri��n, S., Chernov, V., Christensen, F. E., Civitani, M. M., Cogollos, C., Dafn��, T., Derbin, A., Desch, K., D��ez, D., Dinter, M., D��brich, B., Drachnev, I., Dudarev, A., Dumoulin, L., Ferreira, D. D. M., Ferrer-Ribas, E., Fleck, I., Gal��n, J., Gasc��n, D., Gastaldo, L., Giannotti, M., Giomataris, Y., Giuliani, A., Gninenko, S., Golm, J., Golubev, N., Hagge, L., Hahn, J., Hailey, C. J., Hengstler, D., Henriksen, P. L., Houdy, T., Iglesias-Marzoa, R., Iguaz, F. J., Irastorza, I. G., I��iguez, C., Jakov��i��, K., Kaminski, J., Kanoute, B., Karstensen, S., Kravchuk, L., Laki��, B., Lasserre, T., Laurent, P., Limousin, O., Lindner, A., Loidl, M., Lomskaya, I., L��pez-Alegre, G., Lubsandorzhiev, B., Ludwig, K., Luz��n, G., Malbrunot, C., Margalejo, C., Marin-Franch, A., Marnieros, S., Marutzky, F., Mauricio, J., Menesguen, Y., Mentink, M., Mertens, S., Mescia, F., Miralda-Escud��, J., Mirallas, H., Mols, J. P., Muratova, V., Navick, X. F., Nones, C., Notari, A., Nozik, A., Obis, L., Oriol, C., Orsini, F., Ortiz de Sol��rzano, A., Oster, S., Pais Da Silva, H. P., Pantuev, V., Papaevangelou, T., Pareschi, G., Perez, K., P��rez, O., Picatoste, E., Pivovaroff, M. J., Poda, D. V., Redondo, J., Ringwald, A., Rodrigues, M., Rueda-Teruel, F., Rueda-Teruel, S., Ruiz-Choliz, E., Ruz, J., Saemann, E. O., Salvado, J., Schiffer, T., Schmidt, S., Schneekloth, U., Schott, M., Segui, L., Tavecchio, F., ten Kate, H. H. J., Tkachev, I., Troitsky, S., Unger, D., Unzhakov, E., Ushakov, N., Vogel, J. K., Voronin, D., Weltman, A., Werthenbach, U., Wuensch, W., and Yanes-D��az, A.

Subjects
axion: dark matter, CP violation, Beyond Standard Model, Dark matter, axion-like particles, Other experiments, axion: solar, IAXO, sensitivity, 7. Clean energy, optics, detector: design
Abstract

Journal of high energy physics 05(5), 137 (2021). doi:10.1007/JHEP05(2021)137, This article describes BabyIAXO, an intermediate experimental stage of the International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale axion helioscope that will look for axions and axion-like particles (ALPs), produced in the Sun, with unprecedented sensitivity. BabyIAXO is conceived to test all IAXO subsystems (magnet, optics and detectors) at a relevant scale for the final system and thus serve as prototype for IAXO, but at the same time as a fully-fledged helioscope with relevant physics reach itself, and with potential for discovery. The BabyIAXO magnet will feature two 10 m long, 70 cm diameter bores, and will host two detection lines (optics and detector) of dimensions similar to the final ones foreseen for IAXO. BabyIAXO will detect or reject solar axions or ALPs with axion-photon couplings down to g$_{a��}$ ��� 1.5 �� 10$^{���11}$ GeV$^{���1}$, and masses up to m$_{a}$ ��� 0.25 eV. BabyIAXO will offer additional opportunities for axion research in view of IAXO, like the development of precision x-ray detectors to identify particular spectral features in the solar axion spectrum, and the implementation of radiofrequency-cavity-based axion dark matter setups.[graphic not available: see fulltext], Published by SISSA, [Trieste]

43. Charge-to-heat transducers exploiting the Neganov-Trofimov-Luke effect for light detection in rare-event searches.

Author

Novati, V., Bergé, L., Dumoulin, L., Giuliani, A., Mancuso, M., de Marcillac, P., Marnieros, S., Olivieri, E., Poda, D.V., Tenconi, M., and Zolotarova, A.S.

Subjects
*INFRARED detectors, *TRANSDUCERS, *PHOTODETECTORS, *BOLOMETERS, *LOW temperatures, *INFRARED radiation
Abstract

In this work we present how to fabricate large-area (15 cm 2), ultra-low threshold germanium bolometric photo-detectors and how to operate them to detect few (optical) photons. These detectors work at temperatures as low as few tens of mK and exploit the Neganov-Trofimov-Luke (NTL) effect. They are operated as charge-to-heat transducers: the heat signal is linearly increased by simply changing a voltage bias applied to special metal electrodes, fabricated onto the germanium absorber, and read by a (NTD-Ge) thermal sensor. We fabricated a batch of five prototypes and ran them in different facilities with dilution refrigerators. We carefully studied how impinging spurious infrared radiation impacts the detector performances, by shining infrared photons via optical-fiber-guided LED signals, in a controlled manner, into the bolometers. We hence demonstrated how the radiation-tightness of the test environment tremendously enhances the detector performances, allowing to set electrode voltage bias up to 90 volts without any leakage current and signal-to-noise gain as large as a factor 12 (for visible photons). As consequence, for the first time we could operate large-area NTD-Ge-sensor-equipped NTL bolometric photo-detectors capable to reach sub 10-eV baseline noise (RMS). Such detectors open new frontiers for rare-event search experiments based on low light yield Ge-NTD equipped scintillating bolometers, such the CUPID neutrinoless double-beta decay experiment. [ABSTRACT FROM AUTHOR]

Published
2019
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44. Incomplete charge collection and the Luke effect in low-temperature germanium bolometer for dark matter search

Author

Juillard, A., Broniatowski, A., Censier, B., Bergé, L., Marnieros, S., and Dumoulin, L.

Subjects
*GERMANIUM diodes, *BOLOMETERS, *DARK matter, *HOLES (Electron deficiencies)
Abstract

We present an analysis, supported by numerical simulations, of the heat and ionization yield for events with incomplete charge collection in low-temperature germanium detectors. A consistent explanation of the ionization and heat balance (including an incomplete Luke effect) at different collection voltages is obtained on the assumption that any carriers (electrons or holes) reaching the surface are trapped at surface states. [Copyright &y& Elsevier]

Published
2004
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45. A multi-tiered data structure and process management system based on ROOT and CouchDB

Author

H. Rodenas, P. Coulter, T. Bergmann, M. Chapellier, D. Filosofov, A. S. Torrento-Coello, G. Chardin, J. Gironnet, O. Crauste, M. Kleifges, E. Yakushev, L. Bergé, S. Jokisch, B. Schmidt, S. Hervé, G. Gerbier, V. A. Kudryavtsev, M. Gros, N. Fourches, Rodney Walker, J. Gascon, G. A. Cox, A. Broniatowski, S. Semikh, P. Pari, V. Sanglard, X. Zhang, M. De Jesus, S. Marnieros, C. Augier, V. Kozlov, L. Vagneron, L. Pattavina, Sophie Collin, Marc Weber, Max Robinson, J. Blümer, K. Eitel, G. Bres, V. B. Brudanin, Alain Benoit, F. Charlieux, S. Henry, B. Censier, L. Dumoulin, B. Paul, A. Juillard, A. Menshikov, J. Domange, S. V. Rozov, X-F. Navick, Denis Tcherniakhovski, E. Olivieri, E. Armengaud, M.-A. Verdier, H. Kluck, P. Loaiza, H. Kraus, C. Nones, M. Unrau, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), CSNSM INSTR, Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Electronique (ElecLab), CSNSM PS1, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Cryogénie (Cryo), Institut Rayonnement Matière de Saclay (IRAMIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Electronique (NEEL - ElecLab), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Cryogénie (NEEL - Cryo), HELFA - Hélium : du fondamental aux applications, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), ElecLab - Electronique, Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Cryo - Cryogénie, Cox, G, Armengaud, E, Augier, C, Benoit, A, Berge, L, Bergmann, T, Bluemer, J, Bres, G, Broniatowski, A, Brudanin, V, Censier, B, Chapellier, M, Chardin, G, Charlieux, F, Collin, S, Coulter, P, Crauste, O, De Jesus, M, Domange, J, Dumoulin, L, Eitel, K, Filosofov, D, Fourches, N, Gascon, J, Gerbier, G, Gironne, J, Gros, M, Henry, S, Herve, S, Jokisch, S, Juillard, A, Kleifges, M, Kluck, H, Kozlovg, V, Kraus, H, Kudryavtsev, V, Loaiza, P, Marnieros, S, Menshikov, A, Navick, X, Nones, C, Olivieri, E, Pari, P, Pattavina, L, Paul, B, Robinson, M, Rodenas, H, Rozov, S, Sanglard, V, Schmidt, B, Semikh, S, Tcherniakhovski, D, Torrento Coello, A, Unrau, M, Vagneron, L, Verdier, M, Walker, R, Weber, M, Yakushev, E, and Zhang, X

Subjects
Nuclear and High Energy Physics, Group method of data handling, Data management, computer.software_genre, 01 natural sciences, ROOT, 0103 physical sciences, Rare events, Multi-tier, Dark Matter, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation, Physics, Data processing, 010308 nuclear & particles physics, business.industry, Computer file, Data structure, Management system, Data mining, business, Raw data, computer, Dark matter, data processing, CouchDB
Abstract

A multi-tiered data structure, analysis toolkit and data processing management system has been constructed using ROOT and CouchDB. This system is well suited for experiments that acquire many computer files of raw data over the course of months or years, that are distributed to different computing centers and further reduced in size by several steps of data processing. Data handling for experiments searching for rare events extracted from digitized pulse traces typically fit this description. An implementation of this system has been constructed for the EDELWEISS-III experiment and is described here in some detail. This solution may also serve as a prototype system for the proposed EURECA experiment. © 2012 Elsevier B.V. All rights reserved.

Published
2012

46. Combined limits on WIMPs from the CDMS and EDELWEISS experiments

Author

Jeffrey P. Filippini, S. Henry, K. Eitel, Tarek Saab, P. Pari, M. R. Dragowsky, S. Hervé, E. Olivieri, N. Mirabolfathi, Steven W. Leman, P. Cushman, S. V. Rozov, M. A. Verdier, L. Bergé, R. W. Schnee, Martin E. Huber, Kevin A. McCarthy, D. O. Caldwell, F. DeJongh, A. S. Torrento-Coello, J. Hall, Enectali Figueroa-Feliciano, S. Arrenberg, Laura Baudis, D. Balakishiyeva, S. Fallows, Alain Benoit, P. Coulter, Y. Ricci, P. Wikus, G. Chardin, X. Defay, S. J. Yellin, R. Bunker, J. Domange, Miguel Daal, O. Kamaev, D. A. Bauer, B. Paul, A. Broniatowski, H. N. Nelson, A. Reisetter, Blas Cabrera, Cristián Martínez, S. Liu, P. L. Brink, H. Kluck, B. Censier, Z. Ahmed, W. Rau, M. Kos, V. A. Kudryavtsev, S. Scorza, J. Gascon, S. A. Hertel, G. A. Cox, Bernard Sadoulet, D. Filosofov, Y. Dolgorouki, P. Di Stefano, T. Bruch, Bruno Serfass, J. Gironnet, D. N. Seitz, P. Nadeau, E. Armengaud, R. J. Walker, L. Pattavina, R. Hennings-Yeomans, H. Kraus, M. Tarka, Max Robinson, C. Augier, M. Kiveni, M. Gros, P. Loaiza, F. Charlieux, X. Qiu, A. Phipps, R. W. Ogburn, Sunil Golwala, X. F. Navick, C. N. Bailey, M. De Jesus, D. S. Akerib, J. Fox, J. Blümer, E. Yakushev, A. Juillard, M. Pyle, L. Hsu, Jie Zhang, V. Kozlov, Jodi Cooley, Matthew Fritts, Vuk Mandic, B. Schmidt, V.B. Brudanin, M. Chapellier, L. Vagneron, N. Fourches, S. Marnieros, J. Yoo, David Moore, R. Mahapatra, Donald J. Holmgren, J. Sander, C. Nones, Betty A. Young, K. M. Sundqvist, G. Gerbier, V. Sanglard, S. Semikh, L. Dumoulin, Ahmed, Z, Akerib, D, Armengaud, E, Arrenberg, S, Augier, C, Bailey, C, Balakishiyeva, D, Baudis, L, Bauer, D, Benoit, A, Berge, L, Bluemer, J, Brink, P, Broniatowski, A, Bruch, T, Brudanin, V, Bunker, R, Cabrera, B, Caldwell, D, Censier, B, Chapellier, M, Chardin, G, Charlieux, F, Cooley, J, Coulter, P, Cox, G, Cushman, P, Daal, M, Defay, X, De Jesus, M, Dejongh, F, Di Stefano, P, Dolgorouki, Y, Domange, J, Dumoulin, L, Dragowsky, M, Eitel, K, Fallows, S, Figueroa Feliciano, E, Filippini, J, Filosofov, D, Fourches, N, Fox, J, Fritts, M, Gascon, J, Gerbier, G, Gironnet, J, Golwala, S, Gros, M, Hall, J, Hennings Yeomans, R, Henry, S, Hertel, S, Herve, S, Holmgren, D, Hsu, L, Huber, M, Juillard, A, Kamaev, O, Kiveni, M, Kluck, H, Kos, M, Kozlov, V, Kraus, H, Kudryavtsev, V, Leman, S, Liu, S, Loaiza, P, Mahapatra, R, Mandic, V, Marnieros, S, Martinez, C, Mccarthy, K, Mirabolfathi, N, Moore, D, Nadeau, P, Navick, X, Nelson, H, Nones, C, Ogburn, R, Olivieri, E, Pari, P, Pattavina, L, Paul, B, Phipps, A, Pyle, M, Qiu, X, Rau, W, Reisetter, A, Ricci, Y, Robinson, M, Rozov, S, Saab, T, Sadoulet, B, Sander, J, Sanglard, V, Schmidt, B, Schnee, R, Scorza, S, Seitz, D, Semikh, S, Serfass, B, Sundqvist, K, Tarka, M, Torrento Coello, A, Vagneron, L, Verdier, M, Walker, R, Wikus, P, Yakushev, E, Yellin, S, Yoo, J, Young, B, Zhang, J, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Souterrain de Modane (LSM - UMR 6417), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut Rayonnement Matière de Saclay (IRAMIS), EDELWEISS, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])

Subjects
Nuclear and High Energy Physics, Particle physics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Dark Matter, bolometers, germanium detectors, Dark matter, Massive particle, FOS: Physical sciences, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, EDELWEISS, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), WIMP, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Fermion, Baryon, Weakly interacting massive particles, High Energy Physics::Experiment, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614 kg.d equivalent exposure. A straightforward method of combination was chosen for its simplicity before data were exchanged between experiments. The results are interpreted in terms of limits on spin-independent WIMP-nucleon cross-section. For a WIMP mass of 90 GeV/c^2, where this analysis is most sensitive, a cross-section of 3.3 x 10^{-44} cm^2 is excluded at 90% CL. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700 GeV/c^2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others., Events, efficiencies, and main limit are available in text format (see README.txt)

Published
2011

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