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Extending the CRESST-II commissioning run limits to lower masses

(2011)

Authors:

Andrew Brown, Sam Henry, Hans Kraus, Christopher McCabe
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Final results of the EDELWEISS-II WIMP search using a 4-kg array of cryogenic germanium detectors with interleaved electrodes

Physics Letters B Elsevier 702:5 (2011) 329-335

Authors:

EDELWEISS Collaboration, E Armengaud, C Augier, A Benoît, L Bergé, J Blümer, A Broniatowski, V Brudanin, B Censier, G Chardin, M Chapellier, F Charlieux, P Coulter, GA Cox, X Defay, M De Jesus, Y Dolgorouki, J Domange, L Dumoulin, K Eitel, D Filosofov, N Fourches, J Gascon, G Gerbier, J Gironnet, M Gros, S Henry, S Hervé, A Juillard, H Kluck, V Kozlov, H Kraus, VA Kudryavtsev, P Loaiza, S Marnieros, X-F Navick, C Nones, E Olivieri, P Pari, L Pattavina, B Paul, M Robinson, S Rozov, V Sanglard, B Schmidt, S Scorza, S Semikh, AS Torrento-Coello, L Vagneron, M-A Verdier, RJ Walker, E Yakushev

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 γ-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 4.4×10−8 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.
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THE FIRST LIMITS ON THE ULTRA-HIGH ENERGY NEUTRINO FLUENCE FROM GAMMA-RAY BURSTS

The Astrophysical Journal American Astronomical Society 736:1 (2011) 50

Authors:

AG Vieregg, K Palladino, P Allison, BM Baughman, JJ Beatty, K Belov, DZ Besson, S Bevan, WR Binns, C Chen, P Chen, JM Clem, A Connolly, M Detrixhe, D De Marco, PF Dowkontt, M DuVernois, PW Gorham, EW Grashorn, B Hill, S Hoover, M Huang, MH Israel, A Javaid, KM Liewer, S Matsuno, BC Mercurio, C Miki, M Mottram, J Nam, RJ Nichol, A Romero-Wolf, L Ruckman, D Saltzberg, D Seckel, GS Varner, Y Wang
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Combined Limits on WIMPs from the CDMS and EDELWEISS Experiments

(2011)

Authors:

CDMS, EDELWEISS Collaborations, :, Z Ahmed, DS Akerib, E Armengaud, S Arrenberg, C Augier, CN Bailey, D Balakishiyeva, L Baudis, DA Bauer, A Benoît, L Bergé, J Blümer, PL Brink, A Broniatowski, T Bruch, V Brudanin, R Bunker, B Cabrera, DO Caldwell, B Censier, M Chapellier, G Chardin, F Charlieux, J Cooley, P Coulter, GA Cox, P Cushman, M Daal, X Defay, M De Jesus, F DeJongh, PCF Di Stefano, Y Dolgorouki, J Domange, L Dumoulin, MR Dragowsky, K Eitel, S Fallows, E Figueroa-Feliciano, J Filippini, D Filosofov, N Fourches, J Fox, M Fritts, J Gascon, G Gerbier, J Gironnet, SR Golwala, M Gros, J Hall, R Hennings-Yeomans, S Henry, SA Hertel, S Hervé, D Holmgren, L Hsu, ME Huber, A Juillard, O Kamaev, M Kiveni, H Kluck, M Kos, V Kozlov, H Kraus, VA Kudryavtsev, SW Leman, S Liu, P Loaiza, R Mahapatra, V Mandic, S Marnieros, C Martinez, KA McCarthy, N Mirabolfathi, D Moore, P Nadeau, X-F Navick, H Nelson, C Nones, RW Ogburn, E Olivieri, P Pari, L Pattavina, B Paul, A Phipps, M Pyle, X Qiu, W Rau, A Reisetter, Y Ricci, M Robinson, S Rozov, T Saab, B Sadoulet, J Sander, V Sanglard, B Schmidt, RW Schnee, S Scorza, DN Seitz, S Semikh, B Serfass, KM Sundqvist, M Tarka, AS Torrento-Coello, L Vagneron, M-A Verdier, RJ Walker, P Wikus, E Yakushev, S Yellin, J Yoo, BA Young, J Zhang
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Thermal structural properties of calcium tungstate

Journal of Applied Crystallography 44:2 (2011) 319-326

Authors:

A Senyshyn, M Hoelzel, T Hansen, L Vasylechko, V Mikhailik, H Kraus, H Ehrenberg

Abstract:

The results of in situ temperature-resolved powder diffraction studies of CaWO4 scheelite using both synchrotron radiation and neutron scattering are reported. The studies performed over a broad temperature range of 5-1773 K confirm the scheelite type of structure for calcium tungstate over the whole temperature range. The anisotropy of thermal expansion in calcium tungstate as well as the rigidity of WO4 complexes have been analysed in terms of bond distances, interatomic angles and anisotropic displacement parameters. The WO4 2- complex anions showed a remarkable robustness in the whole studied temperature range, thus pointing out that the layered structure formed by two-dimensional CsCl-type arrangements of Ca cations and WO4 complexes is the primary reason for the anisotropy of thermal expansion in calcium tungstate. © 2011 International Union of Crystallography Printed in Singapore - all rights reserved.
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