An extended segment pattern dictionary for pattern matching tracking algorithm at BESIII
Changli Ma, Yao Zhang, Ye Yuan, Xiao-Rui LU, Yangheng Zheng, Kanglin, He, Weidong Li, Huaiming Liu, Qiumei Ma, Linghui Wu
TL;DR
This paper introduces an extended segment pattern dictionary to improve the pattern matching tracking algorithm MdcPatRec at BESIII, significantly enhancing low transverse momentum track reconstruction efficiency.
Contribution
The paper presents a novel extended segment construction scheme and pattern dictionary to address segment finding limitations in MdcPatRec.
Findings
Higher efficiency for low transverse momentum tracks
Improved segment finding accuracy
Validated with Monte-Carlo and experimental data
Abstract
A pattern matching based tracking algorithm, named MdcPatRec, is used for the reconstruction of charged tracks in the drift chamber of the BESIII detector. This paper addresses the shortage of segment finding in MdcPatRec algorithm. An extended segment construction scheme and the corresponding pattern dictionary are presented. Evaluation with Monte-Carlo and experimental data show that the new method can achieve higher efficiency for low transverse momentum tracks.
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