The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search experiment aims for the detection of dark matter particles via elastic scattering off nuclei in CaWO 4 crystals. To understand the CRESST electromagnetic background due to the bulk contamination in the employed materials, a model based on Monte Carlo simulations was developed using the Geant4 simulation toolkit. The results of the simulation are applied to the TUM40 detector module of CRESST-II phase 2. We are able to explain up to (68±16)% of the electromagnetic background in the energy range between 1 and 40keV.
Abdelhameed, A., Angloher, G., Bauer, P., Bento, A., Bertoldo, E., Breier, R., et al. (2019). Geant4-based electromagnetic background model for the CRESST dark matter experiment. THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS, 79(10) [10.1140/epjc/s10052-019-7385-0].
Geant4-based electromagnetic background model for the CRESST dark matter experiment
Canonica L.;Pattavina L.;
2019
Abstract
The CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) dark matter search experiment aims for the detection of dark matter particles via elastic scattering off nuclei in CaWO 4 crystals. To understand the CRESST electromagnetic background due to the bulk contamination in the employed materials, a model based on Monte Carlo simulations was developed using the Geant4 simulation toolkit. The results of the simulation are applied to the TUM40 detector module of CRESST-II phase 2. We are able to explain up to (68±16)% of the electromagnetic background in the energy range between 1 and 40keV.
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