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Observation of Ultra-high-energy Cosmic Rays with the ANITA Balloon-borne Radio Interferometer

(2010)

Authors:

S Hoover, J Nam, PW Gorham, E Grashorn, P Allison, SW Barwick, JJ Beatty, K Belov, DZ Besson, WR Binns, C Chen, P Chen, JM Clem, A Connolly, PF Dowkontt, MA DuVernois, RC Field, D Goldstein, AG Vieregg, C Hast, CL Hebert, MH Israel, A Javaid, J Kowalski, JG Learned, KM Liewer, JT Link, E Lusczek, S Matsuno, BC Mercurio, C Miki, P Miočinović, CJ Naudet, J Ng, RJ Nichol, K Palladino, K Reil, A Romero-Wolf, M Rosen, L Ruckman, D Saltzberg, D Seckel, GS Varner, D Walz, F Wu
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Direct dark matter search with CRESST and EURECA

Progress in Particle and Nuclear Physics 64:2 (2010) 457-459

Authors:

S Roth, G Angloher, M Bauer, I Bavykina, A Bento, A Brown, C Bucci, C Ciemniak, C Coppi, G Deuter, A Erb, FV Feilitzsch, A Gütlein, D Hauff, S Henry, M Hofmann, P Huff, J Imber, S Ingelby, C Isaila, J Jochum, M Kiefer, M Kimmerle, H Kraus, T Lachenmaier, JC Lanfranchi, RF Lang, B Majorovits, M Malek, R McGowan, V Mikhailik, E Pantic, F Petricca, S Pfister, W Potzel, F Pröbst, K Rottler, C Sailer, K Schäffner, J Schmaler, S Scholl, W Seidel, MV Sivers, L Stodolsky, R Strauss, AJB Tolhurst, I Usherov, W Westphal

Abstract:

The current status of the direct Dark Matter experiments CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) and the planned EURECA (European Underground Rare Event Calorimeter Array) is presented. Both experiments are aimed at the direct detection of WIMPs (Weakly Interacting Massive Particles), potential candidates for the Dark Matter in the universe. New design developments of the cryogenic detectors operated at mK temperatures are investigated to optimize detector performance and to simplify mass production. Thus, CRESST is also providing a basis for the EURECA project, aimed at a ton of cryogenic detectors with a multi-material target. © 2010 Elsevier B.V. All rights reserved.
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Observational Constraints on the Ultra-high Energy Cosmic Neutrino Flux from the Second Flight of the ANITA Experiment

(2010)

Authors:

The ANITA Collaboration, PW Gorham, 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, 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, K Palladino, A Romero-Wolf, L Ruckman, D Saltzberg, D Seckel, GS Varner, AG Vieregg, Y Wang
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First test of a cryogenic scintillation module with a CaWO4 scintillator and a low-temperature photomultiplier down to 6 K

(2010)

Authors:

H Kraus, VB Mikhailik
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Discrimination of recoil backgrounds in scintillating calorimeters

Astroparticle Physics 33:1 (2010) 60-64

Authors:

RF Lang, G Angloher, M Bauer, I Bavykina, A Bento, A Brown, C Bucci, C Ciemniak, C Coppi, G Deuter, F von Feilitzsch, D Hauff, S Henry, P Huff, J Imber, S Ingleby, C Isaila, J Jochum, M Kiefer, M Kimmerle, H Kraus, JC Lanfranchi, M Malek, R McGowan, VB Mikhailik, E Pantic, F Petricca, S Pfister, W Potzel, F Pröbst, S Roth, K Rottler, C Sailer, K Schäffner, J Schmaler, S Scholl, W Seidel, L Stodolsky, AJB Tolhurst, I Usherov, W Westphal

Abstract:

The alpha decay of 210Po is a dangerous background to rare event searches. Here, we describe observations related to this alpha decay in the Cryogenic Rare Event Search with Superconducting Thermometers (CRESST). We find that lead nuclei show a scintillation light yield in our CaWO4 crystals of 0.0142 ± 0.0013 relative to electrons of the same energy. We describe a way to discriminate this source of nuclear recoil background by means of a scintillating foil, and demonstrate its effectiveness. This leads to an observable difference in the pulse shape of the light detector, which can be used to tag these events. Differences in pulse shape of the phonon detector between lead and electron recoils are also extracted, opening the window to future additional background suppression techniques based on pulse shape discrimination in such experiments. © 2009 Elsevier B.V.
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