GEANT4中自旋相关p-C散射的实现及其在pEDM存储环实验中的应用

Proceedings of XVII International Workshop on Polarized Sources, Targets & Polarimetry — PoS(PSTP2017) Pub Date : 2018-05-31 DOI:10.22323/1.324.0027

Hoyong Jeong, Seongtae Park, E. Petrakou, E. Stephenson, E. Won, Y. Semertzidis

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引用次数: 0

摘要

基础科学研究所(IBS)轴子与精密物理研究中心(CAPP)正在尝试利用气电子倍增器(GEM)技术开发用于存储环质子EDM (SR pEDM)实验的原型偏振仪探测器。偏振光计的系统误差主要来自于偏振光计的几何特性和光束动力学。如光束倾斜、偏移或探测器不对准等都可能是误差的来源。本文利用自己修改的GEANT4仿真包对系统误差进行了研究。改进后的GEANT4可以计算质子-碳散射的自旋依赖强子弹性截面。本研究将解释如何在方位角上实现自旋相关强子弹性散射，并演示其在偏振光计几何误差相关的系统误差研究中的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Realization of Spin-dependent p-C Scattering in GEANT4 and Its Application To Storage Ring Experiment For pEDM

The Center for Axion and Precision Physics Research (CAPP) of the Institute for Basic Science (IBS) is attempting to develop prototype polarimeter detector using gas electron multiplier (GEM) technology for the storage ring proton EDM (SR pEDM) experiment. Systematic errors in the polarimeter mainly come from geometric characteristics of the polarimeter and beam dynamics. Such as beam tilt, shift or detector misalignment etc. can be sources of errors. This investigation of systematic errors has been done with GEANT4 simulation package modified by ourselves. The modified GEANT4 can calculate spin-dependent hadron elastic cross-section of proton-carbon scattering, unlike the original one. This research will explain how to realize spin-dependent hadronic elastic scattering in the azimuth angle and demonstrate its application to the geometric error related systematic error study of polarimeter.

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Proceedings of XVII International Workshop on Polarized Sources, Targets & Polarimetry — PoS(PSTP2017)

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