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arXiv 1908.06755astro-ph.IM
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CRESST暗物质实验的Geant4-based电磁背景模型

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.… 展开作者

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

摘要:

CRESST(Cryogenic Rare Event Search with Superconducting Thermometers)暗物质搜索实验旨在通过$\mathrm{CaWO_4}$晶体中原子核的弹性散射来探测暗物质粒子。为了了解CRESST电磁背景,由于大量的污染,在所采用的材料,一个基于蒙特卡罗模拟的模型,使用Geant 4模拟工具包。仿真结果应用于CRESST-II第2阶段的TUM 40探测器模块。我们能够解释高达$(68 \pm 16)\,\mathrm{\%}$的电磁背景的能量范围之间的$1\,\mathrm{keV}$和$40\,\mathrm{keV}$。

英文摘要:

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 $40\,\mathrm{keV}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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