First results on low-mass dark matter from the CRESST-III experiment
CRESST collaboration · Petricca, F. · Angloher, G. · Bauer, P. · Bento, A. · Bucci, C. · Canonica, L. · Defay, X. · Erb, A. · Feilitzsch, F. v. · Iachellini, N. Ferreiro · Gorla, P. · Gütlein, A. · Hauff, D. · Jochum, J. · Kiefer, M. · Kluck, H. · Kraus, H. · Lanfranchi, J. C. · Lagenkämper, A. · Loebell, J. · Mancuso, M. · Mondragon, E. · Münster, A. · Pagliarone, C. · Potzel, W. · Pröbst, F. · Puig, R. · Reindl, F. · Rothe, J. · Schäffner, K. · Schieck, J. · Schönert, S. · Seidel, W. · Stahlberg, M. · Stodolsky, L. · Strandhagen, C. · Strauss, R. · Tanzke, A. · Thi, H. H. Trinh · Türkoğlu, C. · Ulrich, A. · Usherov, I. · Wawoczny, S. · Willers, M. · Wüstrich, M.
الأصل · EN
The CRESST experiment, located at Laboratori Nazionali del Gran Sasso in Italy, searches for dark matter particles via their elastic scattering off nuclei in a target material. The CRESST target consists of scintillating CaWO₄ crystals, which are operated as cryogenic calorimeters at millikelvin temperatures. Each interaction in the CaWO₄ target crystal produces a phonon signal and a light signal that is measured by a second cryogenic calorimeter. Since the CRESST-II result in 2015, the experiment is leading the field of direct dark matter search for dark matter masses below 1.7GeV/c², extending the reach of direct searches to the sub-GeV/c² mass region. For CRESST-III, whose Phase 1 started in July 2016, detectors have been optimized to reach the performance required to further probe the low-mass region with unprecedented sensitivity. In this contribution the achievements of the CRESST-III detectors will be discussed together with preliminary results and perspectives of Phase 1.
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