论文标题

用于电荷 - 交换$(D,{}^{2} \ text {He})$反应的仿真和分析工具与at-tpc中的反向运动学中的反应

Simulations and analysis tools for charge-exchange $(d,{}^{2}\text{He})$ reactions in inverse kinematics with the AT-TPC

论文作者

Giraud, S., Zamora, J. C., Zegers, R. G. T., Ayyad, Y., Bazin, D., Mittig, W., Carls, A., DeNudt, M., Rahman, Z.

论文摘要

电荷 - 交换$(d,{}^{2} \ text {he})$反向运动学中的反向反应是一种非常有前途的方法,可以研究不稳定核中的Gamow-Teller转变强度。开发了基于$ \ rm {\ scriptSize attpcroot} $软件包的仿真和分析软件,以研究使用Active-Target时间投影室(AT-TPC)研究此类反应。模拟例程提供了一个现实的检测器响应,可用于理解和基准测试实验数据。可以从$ \ rm {\ scriptSize attpcroot} $中开发和测试分析工具和校正程序,因为它们的处理方式与真实数据相同。特别是,我们研究了使用与光束样粒子的一致性明确识别$(d,{}^{2} \ text {He})$反应通道的可行性,并为未来应用开发运动型拟合程序。从技术上讲,详细研究了空间充电效应在轨道重建中的影响以及可能的校正方法。该分析和仿真软件包构成了使用AT-TPC的快速束计划软件开发的重要组成部分。

Charge-exchange $(d,{}^{2}\text{He})$ reactions in inverse kinematics at intermediate energies are a very promising method to investigate the Gamow-Teller transition strength in unstable nuclei. A simulation and analysis software based on the $\rm{\scriptsize ATTPCROOT}$ package was developed to study these type of reactions with the active-target time projection chamber (AT-TPC). The simulation routines provide a realistic detector response that can be used to understand and benchmark experimental data. Analysis tools and correction routines can be developed and tested from simulations in $\rm{\scriptsize ATTPCROOT}$, because they are processed in the same way as the real data. In particular, we study the feasibility of using coincidences with beam-like particles to unambiguously identify the $(d,{}^{2}\text{He})$ reaction channel, and to develop a kinematic fitting routine for future applications. More technically, the impact of space-charge effects in the track reconstruction, and a possible correction method are investigated in detail. This analysis and simulation package constitutes an essential part of the software development for the fast-beams program with the AT-TPC.

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