A detector module with highly efficient surface-alpha event rejection operated in CRESST-II Phase 2
R. Strauss,R. Strauss,G. Angloher,A. Bento,C. Bucci,Lucia Canonica,Andreas Erb,F. von Feilitzsch,N. Ferreiro,P. Gorla,A. Gütlein,D. Hauff,J. Jochum,M. Kiefer,H. Kluck,H. Kraus,J.-C. Lanfranchi,J. Loebell,A. Münster,F. Petricca,W. Potzel,F. Pröbst,F. Reindl,S. Roth,K. Rottler,C. Sailer,K. Schäffner,Jochen Schieck,S. Scholl,S. Schönert,W. Seidel,M. von Sivers,M. von Sivers,M. Stanger,Leo Stodolsky,C. Strandhagen,A. Tanzke,M. Uffinger,A. Ulrich,I. Usherov,S. Wawoczny,M. Willers,M. Wüstrich,A. Zöller +43 more
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TLDR
In this article, a new, highly improved, detector design installed in the current run of CRESST-II Phase 2 with an efficient active rejection of surface-alpha backgrounds is presented.Abstract:
The cryogenic dark matter experiment CRESST-II aims at the direct detection of WIMPs via elastic scattering off nuclei in scintillating CaWO
$$_4$$
crystals. We present a new, highly improved, detector design installed in the current run of CRESST-II Phase 2 with an efficient active rejection of surface-alpha backgrounds. Using CaWO
$$_4$$
sticks instead of metal clamps to hold the target crystal, a detector housing with fully-scintillating inner surface could be realized. The presented detector (TUM40) provides an excellent threshold of $${\sim }0.60$$
keV and a resolution of $$\sigma \,{\approx }\,0.090$$
keV (at 2.60 keV). With significantly reduced background levels, TUM40 sets stringent limits on the spin-independent WIMP-nucleon scattering cross section and probes a new region of parameter space for WIMP masses below 3 GeV/c
$$^2$$
. In this paper, we discuss the novel detector design and the surface-alpha event rejection in detail.read more
Citations
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Journal ArticleDOI
Results on light dark matter particles with a low-threshold CRESST-II detector
G. Angloher,A.C.S.S.M. Bento,C. Bucci,L. Canonica,X. Defay,Andreas Erb,F. von Feilitzsch,N. Ferreiro Iachellini,P. Gorla,A. Gütlein,D. Hauff,J. Jochum,M. Kiefer,H. Kluck,H. Kraus,J.-C. Lanfranchi,J. Loebell,A. Münster,C. Pagliarone,F. Petricca,W. Potzel,F. Pröbst,F. Reindl,K. Schäffner,Jochen Schieck,S. Schönert,W. Seidel,Leo Stodolsky,C. Strandhagen,R. Strauss,A. Tanzke,H. H. Trinh Thi,C. Türkoğlu,M. Uffinger,A. Ulrich,I. Usherov,S. Wawoczny,M. Willers,M. Wüstrich,A. Zöller +39 more
TL;DR: The CRESST-II experiment uses cryogenic detectors to search for nuclear recoil events induced by the elastic scattering of dark matter particles in CaWO======$_4$$676 € 2 Â
Journal ArticleDOI
First results from the CRESST-III low-mass dark matter program
A. H. Abdelhameed,G. Angloher,Peter Bauer,A. Bento,E. Bertoldo,C. Bucci,L. Canonica,A. D'Addabbo,X. Defay,S. Di Lorenzo,A. Erb,F. v. Feilitzsch,S. Fichtinger,N. Ferreiro Iachellini,A. Fuss,P. Gorla,D. Hauff,J. Jochum,A. Kinast,H. Kluck,H. Kraus,A. Langenkämper,M. Mancuso,V. Mokina,E. Mondragon,A. Münster,M. Olmi,T. Ortmann,C. Pagliarone,L. Pattavina,F. Petricca,W. Potzel,F. Pröbst,F. Reindl,J. Rothe,K. Schäffner,Jochen Schieck,V. Schipperges,D. Schmiedmayer,S. Schönert,C. Schwertner,M. Stahlberg,Leo Stodolsky,C. Strandhagen,R. Strauss,C. Türkoglu,I. Usherov,M. Willers,V. Zema +48 more
TL;DR: In this article, the authors describe the analysis of one detector operated in the first run of CRESST-III (05/2016-02/2018) achieving a nuclear recoil threshold of 30.1 eV. This result was obtained with a 23.6 g CaWO4 crystal operated as a cryogenic scintillating calorimeter.
Journal ArticleDOI
Dark matter direct-detection experiments
TL;DR: In this paper, the status of direct dark matter searches is summarized, focusing on the detector technologies used to directly detect a dark matter particle producing recoil energies in the keV energy scale.
Journal ArticleDOI
The COSINUS project: perspectives of a NaI scintillating calorimeter for dark matter search
G. Angloher,Paolo Carniti,L. Cassina,L. Gironi,L. Gironi,Claudio Gotti,A. Gütlein,D. Hauff,M. Maino,S. S. Nagorny,L. Pagnanini,G. Pessina,F. Petricca,S. Pirro,F. Pröbst,F. Reindl,K. Schäffner,Jochen Schieck,W. Seidel +18 more
TL;DR: The COSINUS project as discussed by the authors developed a cryogenic scintillating calorimeter using an undoped NaI-crystal as target for direct dark matter search.
Journal ArticleDOI
New results on low-mass dark matter from the CRESST-II experiment
F. Petricca,G. Angloher,A.C.S.S.M. Bento,C. Bucci,Lucia Canonica,X. Defay,Andreas Erb,Franz von Feilitzsch,N. Ferreiro Iachellini,P. Gorla,A. Gütlein,D. Hauff,Josef Jochum,M. Kiefer,H. Kluck,H. Kraus,J.-C. Lanfranchi,J. Loebell,A. Münster,C. Pagliarone,W. Potzel,F. Pröbst,F. Reindl,K. Schäffner,Jochen Schieck,S. Schönert,W. Seidel,Leo Stodolsky,C. Strandhagen,R. Strauss,A. Tanzke,H. H. Trinh Thi,C. Türkoğlu,M. Uffinger,A. Ulrich,I. Usherov,S. Wawoczny,M. Willers,M. Wüstrich,A. Zöller +39 more
TL;DR: The CRESST-II experiment is searching for dark matter particles via their elastic scattering off nuclei in a target material as discussed by the authors, and the results from a blind analysis of one detector module operated in the latest measurement campaign are presented.
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TL;DR: A search for particle dark matter with the XENON100 experiment, operated at the Laboratori Nazionali del Gran Sasso for 13 months during 2011 and 2012, has yielded no evidence for dark matter interactions.
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