A biased MC for muon production for beam-dump experiments
A biased MC for muon production for beam-dump experiments
复制标题
用于束流收集器实验的 μ 介子产生的偏置 MC
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
T. Spadaro
中科院分区：
文献类型：
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作者：
S. Ghinescu;B. Döbrich;E. Minucci;T. Spadaro
寻找MeV-GeV质量范围内的弱相互作用新物理粒子通常涉及将高强度光束倾倒到厚的重目标中。从第一原理评估这些搜索的预期背景的挑战受到产生由初级束引起的簇射所需的CPU时间的限制。我们提出了一个Monte Carlo偏置方法，允许三个数量级的增加效率的模拟μ子生产在400 GeV/c质子束流收集装置。与此同时，这种偏置方法几乎保留了第一原理模拟的所有特征。
The search for feebly-interacting new-physics particles in the MeV-GeV mass range often involves high-intensity beams dumped into thick heavy targets. The challenge of evaluating the expected backgrounds for these searches from first principles is limited by the CPU time needed to generate the shower induced by the primary beam. We present a Monte Carlo biasing method allowing a three orders of magnitude increase in the efficiency for the simulation of the muon production in a 400 GeV/c proton beam-dump setup. At the same time, this biasing method is maintaining nearly every feature of a simulation from first principles.