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28 March 2024
 
  » arxiv » 1904.0498

 Article overview


First results from the CRESST-III low-mass dark matter program
CRESST Collaboration ; A. H. Abdelhameed ; G. Angloher ; P. 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 ; J. Schieck ; V. Schipperges ; D. Schmiedmayer ; S. Schönert ; C. Schwertner ; M. Stahlberg ; L. Stodolsky ; C. Strandhagen ; R. Strauss ; C. Türkoglu ; I. Usherov ; M. Willers ; V. Zema ;
Date 1 Apr 2019
AbstractThe CRESST experiment is a direct dark matter search which aims to measure interactions of potential dark matter particles in an earth-bound detector. With the current stage, CRESST-III, we focus on a low energy threshold for increased sensitivity towards light dark matter particles. In this manuscript we describe the analysis of one detector operated in the first run of CRESST-III (05/2016-02/2018) achieving a nuclear recoil threshold of 30.1eV. This result was obtained with a 23.6g CaWO$_4$ crystal operated as a cryogenic scintillating calorimeter in the CRESST setup at the Laboratori Nazionali del Gran Sasso (LNGS). Both the primary phonon/heat signal and the simultaneously emitted scintillation light, which is absorbed in a separate silicon-on-sapphire light absorber, are measured with highly sensitive transition edge sensors operated at ~15mK. The unique combination of these sensors with the light element oxygen present in our target yields sensitivity to dark matter particle masses as low as 160MeV/c$^2$.
Source arXiv, 1904.0498
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