论文标题
蒙特卡洛模拟蜜蜂实验的超导隧道连接量子传感器
Monte-Carlo Simulations of Superconducting Tunnel Junction Quantum Sensors for the BeEST Experiment
论文作者
论文摘要
超导隧道连接（STJ）用作高分辨率量子传感器，以搜索$^7 $ BE的电子捕获衰变中无菌中微子的证据。我们正在为超导体中的能量弛豫开发空间分辨的蒙特 - 卡洛模拟，以了解$^7 $衰减后的电子逃逸，并区分STJ响应函数中的细节与可能的无菌中微子信号。对电荷产生和不同材料的Fano因子的模拟与文献值一致。逃生尾巴的初始模拟与观测值一致，并在线形中包含精细的结构。随着更好的实验数据可用，线形将被改进。
Superconducting Tunnel Junctions (STJs) are used as high-resolution quantum sensors to search for evidence of sterile neutrinos in the electron capture decay of $^7$Be. We are developing spatially-resolved Monte-Carlo simulations of the energy relaxation in superconductors to understand electron escape after the $^7$Be decay and distinguish details in the STJ response function from a possible sterile neutrino signal. Simulations of the charge generation and the Fano factor for different materials agree with the literature values. Initial simulations of the escape tail are consistent with observations, and contain fine structure in the line shape. The line shape will be refined as better experimental data become available.
