用于高能物理实验的紧凑μ子产生和收集方案
Compact Muon Production and Collection Scheme for High-Energy Physics Experiments
摘要：
μ子对同步辐射的相对免疫力表明，它们可能在基础高能物理实验中代替电子作为探针。μ子通常通过带电粒子束与靶相互作用的π介子衰变间接产生。然而，初始束的大角度和能量色散以及短μ子寿命限制了许多潜在的应用。在这里，我们描述了一种快速的方法来操纵的纵向和横向相空间的发散π介子-μ子束，使有效的捕获和下游运输的损失最小。我们还讨论了处理系统的设计，用于从目标区域去除不需要的二次颗粒，从而减少机器的激活。我们描述的紧凑型μ子源可用于中微子实验中的基础物理研究。
英文摘要：
The relative immunity of muons to synchrotron radiation suggests that they might be used in place of electrons as probes in fundamental high-energy physics experiments. Muons are commonly produced indirectly through pion decay by interaction of a charged particle beam with a target. However, the large angle and energy dispersion of the initial beams as well as the short muon lifetime limits many potential applications. Here, we describe a fast method for manipulating the longitudinal and transverse phase-space of a divergent pion-muon beam to enable efficient capture and downstream transport with minimum losses. We also discuss the design of a handling system for the removal of unwanted secondary particles from the target region and thus reduce activation of the machine. The compact muon source we describe can be used for fundamental physics research in neutrino experiments.
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