论文标题

蒙特卡洛事件的角度分布弱单杆生产

Angular distributions in Monte Carlo event generation of weak single-pion production

论文作者

Niewczas, K., Nikolakopoulos, A., Sobczyk, J. T., Jachowicz, N., González-Jiménez, R.

论文摘要

使用加速器来源中微子的中微子振荡实验中系统误差的实质性来源之一是由于缺乏建模单杆-PION产生(SPP)的精度。振荡分析依赖于蒙特卡洛事件发生器(MC),从而提供了对核靶标的中微子相互作用的理论预测。在这些过程中产生的培训在基本散射和检测器仿真水平上提供了很大一部分振荡信号和背景。因此,开发技术将使我们能够适应将SPP描述为MCS的最先进的理论模型至关重要。 在这项工作中,我们研究了各种算法,以在蒙特卡洛事件发生器中实现单杆生产模型。基于比较研究,我们提出了一种新颖的实施策略,该策略将令人满意的效率与高精度相结合,以重现理论模型预测的细节,包括Pion Angular分布。拟议的实现是独立于模型的,因此提供了一个框架,该框架可以包括任何SPP的模型。我们已经使用Ghent低能模型测试了新算法,用于在NUWRO MONTE CARLO事件发生器中实现的单pion生产。

One of the substantial sources of systematic errors in neutrino oscillation experiments that utilize neutrinos from accelerator sources stems from a lack of precision in modeling single-pion production (SPP). Oscillation analyses rely on Monte Carlo event generators (MC), providing theoretical predictions of neutrino interactions on nuclear targets. Pions produced in these processes provide a significant fraction of oscillation signal and background on both elementary scattering and detector simulation levels. Thus, it is of critical importance to develop techniques that will allow us to accommodate state-of-the-art theoretical models describing SPP into MCs. In this work, we investigate various algorithms to implement single-pion production models in Monte Carlo event generators. Based on comparison studies, we propose a novel implementation strategy that combines satisfactory efficiency with high precision in reproducing details of theoretical models predictions, including pion angular distributions. The proposed implementation is model-independent, thereby providing a framework that can include any model for SPP. We have tested the new algorithm with the Ghent Low Energy Model for single-pion production implemented in the NuWro Monte Carlo event generator.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源