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arXiv · 1908.06755

Geant4-based electromagnetic background model for the CRESST dark matter experiment

CRESST Collaboration·A. H. Abdelhameed·G. Angloher·P. Bauer·A. Bento·E. Bertoldo·R. Breier·C. Bucci·L. Canonica·A. D'Addabbo·S. Di Lorenzo·A. Erb·F. v. Feilitzsch·N. Ferreiro Iachellini·S. Fichtinger·A. Fuss·P. Gorla·D. Hauff·M. Ješkovský·J. Jochum·J. Kaizer·A. Kinast·H. Kluck·H. Kraus·A. Langenkämper·M. Mancuso·V. Mokina·E. Mondragón·M. Olmi·T. Ortmann·C. Pagliarone·V. Palušová·L. Pattavina·F. Petricca·W. Potzel·P. Povinec·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. Türkoğlu·I. Usherov·M. Willers·V. Zema·J. Zeman
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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 $\mathrm{CaWO_4}$ 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 $(68 \pm 16)\,\mathrm{\%}$ of the electromagnetic background in the energy range between $1\,\mathrm{keV}$ and $40\,\mathrm{keV}$.

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CRESST Collaboration, A. H. Abdelhameed, G. Angloher, P. Bauer, A. Bento, E. Bertoldo, R. Breier, C. Bucci, L. Canonica, A. D'Addabbo, S. Di Lorenzo, A. Erb, F. v. Feilitzsch, N. Ferreiro Iachellini, S. Fichtinger, A. Fuss, P. Gorla, D. Hauff, M. Ješkovský, J. Jochum, J. Kaizer, A. Kinast, H. Kluck, H. Kraus, A. Langenkämper, M. Mancuso, V. Mokina, E. Mondragón, M. Olmi, T. Ortmann, C. Pagliarone, V. Palušová, L. Pattavina, F. Petricca, W. Potzel, P. Povinec, 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. Türkoğlu, I. Usherov, M. Willers, V. Zema, J. Zeman. 2019-08-19. Geant4-based electromagnetic background model for the CRESST dark matter experiment. https://doi.org/10.1140/epjc/s10052-019-7385-0

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