Geant4-based electromagnetic background model for the CRESST dark matter experiment.
A H AbdelhameedG AngloherP BauerA BentoE BertoldoR BreierC BucciL CanonicaA D'AddabboS Di LorenzoA ErbF V FeilitzschN Ferreiro IachelliniS FichtingerA FussP GorlaD HauffM Jes KovskýJ JochumJ KaizerA KinastH KluckH KrausA LangenkämperM MancusoValentyna MokinaE MondragónM OlmiT OrtmannC PagliaroneV Palus OváL PattavinaF PetriccaW PotzelP PovinecF PröbstF ReindlJ RotheK SchäffnerJ SchieckV SchippergesD SchmiedmayerS SchönertC SchwertnerM StahlbergL StodolskyC StrandhagenR StraussCenk TürkoğluI UsherovM WillersV ZemaJ ZemanPublished in: The European physical journal. C, Particles and fields (2019)
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 40 keV .