Speaker
Description
CRESST-III is a cryogenic dark matter experiment operated at the Gran Sasso laboratory in Italy. The primary research interest is the search for dark matter in the sub-GeV mass region. Dark matter particles are detected by measuring the nuclear recoil energy from the elastic scatter with the dark matter particle. The experimental challenge for reaching such a low mass region is to achieve the lowest possible energy detection threshold. Currently CRESST-III has obtained an energy detection threshold of 30.1 eV. The target material is a 24g CaWO4-crystal operated at a temperature of about 15 mK and using a dual read-out scheme. By measuring the phonons and the scintillation light an active background suppression can be reached.
We will present spin-independent results from direct dark matter searches. We will discuss electromagnetic background sources and its composition, based on a Geant4-simulation. The simulation contains the CaWO4-crystal as well as the Cu-support structure. We will also discuss spin-dependent results obtained with a a CaWO4- and a Li2MoO4-crystal.
Finally we will present first results from a new data taking campaign, which started end of 2018 and will give an outlook of the future stages of the experiment.
