First results from the CRESST-III low-mass dark matter program
Abstract
The 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 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.
Cite
@article{arxiv.1904.00498,
title = {First results from the CRESST-III low-mass dark matter program},
author = {CRESST Collaboration and A. H. Abdelhameed and G. Angloher and P. Bauer and A. Bento and E. Bertoldo and C. Bucci and L. Canonica and A. D'Addabbo and X. Defay and S. Di Lorenzo and A. Erb and F. v. Feilitzsch and S. Fichtinger and N. Ferreiro Iachellini and A. Fuss and P. Gorla and D. Hauff and J. Jochum and A. Kinast and H. Kluck and H. Kraus and A. Langenkämper and M. Mancuso and V. Mokina and E. Mondragon and A. Münster and M. Olmi and T. Ortmann and C. Pagliarone and L. Pattavina and F. Petricca and W. Potzel and F. Pröbst and F. Reindl and J. Rothe and K. Schäffner and J. Schieck and V. Schipperges and D. Schmiedmayer and S. Schönert and C. Schwertner and M. Stahlberg and L. Stodolsky and C. Strandhagen and R. Strauss and C. Türkoglu and I. Usherov and M. Willers and V. Zema},
journal= {arXiv preprint arXiv:1904.00498},
year = {2019}
}
Comments
9 pages, 9 figures