The CRESST-III low-mass WIMP detector. Issue 4 (May 2016)

• Record Type: Journal Article
• Authors: Strauss, R; Angloher, G; Bento, A; Bucci, C; Canonica, L; Defay, X; Erb, A; von Feilitzsch, F; Ferreiro Iachellini, N; Gorla, P; Gütlein, A; Hauff, D; Jochum, J; Kiefer, M; Kluck, H; Kraus, H; Lanfranchi, J C; Loebell, J; Münster, A; Pagliarone, C; Petricca, F; Potzel, W; Pröbst, F; Reindl, F; Schäffner, K; Schieck, J; Schönert, S; Seidel, W; Stodolsky, L; Strandhagen, C; Tanzke, A; Trinh Thi, H H; Türkoglu, C; Ufflnger, M; Ulrich, A; Usherov, I; Wawoczny, S; Willers, M; Wüstrich, M; Zöller, A;
• Is Part Of: Journal of physics. Volume 718:Issue 4(2016)
• Publication Date: 2016-05
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/718/4/042048
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: The next generation direct dark matter experiment CRESST-III has a high potential to significantly increase the sensitivity to low-mass WIMPs ( mx ≲10GeV/c 2 ). We present the new CRESST detector module: it consists of a 24 g CaWO4 crystal operated as a phonon detector and a 20×20 mm 2 silicon-on-sapphire light detector. The phonon energy threshold is lowered to ~100eV and a light detector resolution of typically 5eV is achieved. A fully-scintillating inner detector housing is realised which efficiently rejects events from surface-alpha decays. The CaWO4 sticks holding the target crystal are also operated as calorimeters to discriminate all possible artefacts related to the support structure. A projection for the sensitivity to spin-independent WIMP-nucleon scattering is given for the first phase of CRESST-III which will start beginning of 2016.