Improved Modelling of Detector Response Effects in Phonon-based Crystal Detectors used for Dark Matter Searches
M. J. Wilson, A. Zaytsev, B. von Krosigk, I. Alkhatib, M. Buchanan, R. Chen, M. D. Diamond, E. Figueroa-Feliciano, S. A. S. Harms, Z. Hong, K. T. Kennard, N. A.… 展开作者
M. J. Wilson, A. Zaytsev, B. von Krosigk, I. Alkhatib, M. Buchanan, R. Chen, M. D. Diamond, E. Figueroa-Feliciano, S. A. S. Harms, Z. Hong, K. T. Kennard, N. A. Kurinsky, R. Mahapatra, N. Mirabolfathi, V. Novati, M. Platt, R. Ren, A. Sattari, B. Schmidt, Y. Wang, S. Zatschler, E. Zhang, A. Zuniga
Various dark matter search experiments employ phonon-based crystal detectors operated at cryogenic temperatures. Some of these detectors, including certain silicon detectors used by the SuperCDMS Collaboration, are able to achieve single-charge sensitivity when a voltage bias is applied across the detector. The total amount of phonon energy measured by such a detector is proportional to the number of electron-hole pairs created by the interaction. However, crystal impurities and surface effects can cause propagating charges to either become trapped inside the crystal or create additional unpaired charges, producing non-quantized measured energy as a result. A new analytical model for describing these detector response effects in phonon-based crystal detectors is presented. This model improves upon previous versions by demonstrating how the detector response, and thus the measured energy spectrum, is expected to differ depending on the source of events. We use this model to extract detector response parameters for SuperCDMS HVeV detectors, and illustrate how this robust modelling can help statistically discriminate between sources of events in order to improve the sensitivity of dark matter search experiments.
Rare Event Searches Using Cryogenic Detectors via Direct Detection Methods
National Institute of Science Education and Research（国家科学教育与研究中心）；Institute of Modern Physics, Fudan University（复旦大学现代物理研究所）；Department of Physics, University of Toronto（多伦多大学物理系）
Significant noise improvement in a Kinetic Inductance Phonon-Mediated detector by use of a wideband parametric amplifier
Washington University in St. Louis（圣路易斯华盛顿大学）；SLAC National Accelerator Laboratory（斯坦福直线加速器中心）；California Institute of Technology（加州理工学院）；University of California, Berkeley（加州大学伯克利分校）；Stanford University（斯坦福大学）
The SWEET project: probing sugar crystals for direct dark matter searches
Max-Planck-Institut für Physik（马克斯·普朗克物理研究所）；LIBPhys-UC, Departamento de Fisica, Universidade de Coimbra（科英布拉大学LIBPhys-UC物理系）；Instituto de Física da Universidade de São Paulo（圣保罗大学物理研究所）
Quantum Parity Detectors: a qubit based particle detection scheme with meV thresholds for rare-event searches
Washington University in St. Louis（华盛顿大学）；California Institute of Technology（加州理工学院）；Weizmann Institute of Science（魏茨曼科学研究所）；Jet Propulsion Laboratory, California Institute of Technology（加州理工学院喷气推进实验室）
