论文标题
带有S $π$ RIT时间投影室的充电粒子轨道重建
Charged particle track reconstruction with S$π$RIT Time Projection Chamber
论文作者
论文摘要
在本文中，我们提出了一个软件框架，即S $π$ RITROOT，该框架能够跟踪与S $π$ RIT时间投影室记录的重型离子碰撞事件的重建和分析。轨道拟合工具包和顶点重建工具包rave应用于盒子型检测器系统。描述了一种执行螺旋轨道查找和手柄重叠脉冲的模式识别算法。使用Riken的放射性同位素束设施（RIBF）获得的实验数据研究了该软件的性能。这项工作的重点是$^{132} $ sn + $^{124} $ sn碰撞事件的数据，横梁能量为270 AMEV。使用$ \ weft <de/dx \右> $和磁性刚度，带有液体，氢同位素和氦同位素建立粒子识别。
In this paper, we present a software framework, S$π$RITROOT, which is capable of track reconstruction and analysis of heavy-ion collision events recorded with the S$π$RIT time projection chamber. The track-fitting toolkit GENFIT and the vertex reconstruction toolkit RAVE are applied to a box-type detector system. A pattern recognition algorithm which performs helix track finding and handles overlapping pulses is described. The performance of the software is investigated using experimental data obtained at the Radioactive Isotope Beam Facility (RIBF) at RIKEN. This work focuses on data from $^{132}$Sn + $^{124}$Sn collision events with beam energy of 270 AMeV. Particle identification is established using $\left<dE/dx\right>$ and magnetic rigidity, with pions, hydrogen isotopes, and helium isotopes.
