Over the years several rare-event search experiments have shown increasing interest to search for Fractionally Charged Particles (FCPs) within the data acquired in those experiments. This, in turn, has required the need for a framework to calculate accurately the energy loss expected from FCPs as they pass through the detector material. We have developed Monte Carlo methods within Geant4 to simulate for the first time energy loss of FCPs through different physics processes. The program can be used to calculate energy deposition distributions, a major component of any FCP search analysis, as they interact with detector material. We discuss the implementation and validation of the energy loss of FCPs using a typical detector material.

多年来，一些稀有事件搜索实验表明，人们越来越有兴趣在这些实验中获取的数据中搜索分数带电粒子（FCP）。反过来，这就需要一个框架来准确计算FCP通过检测器材料时预期的能量损失。我们已经在Geant 4中开发了蒙特卡洛方法，以通过不同的物理过程首次模拟FCP的能量损失。该程序可用于计算能量沉积分布，这是任何FCP搜索分析的主要组成部分，因为它们与检测器材料相互作用。我们讨论了使用典型检测器材料实现和验证FCP的能量损失。