Track segment finding with CGEM-IT and matching to tracks in ODC

TL;DR

This paper presents a method for identifying track segments in CGEM-IT using coordinate differences, and matching them to tracks in ODC with high efficiency, enhancing particle tracking accuracy.

Contribution

The study introduces a pattern-based approach for track segment finding in CGEM-IT and a chi-squared matching method to connect segments with ODC tracks, improving tracking performance.

Findings

Track segment finding efficiency exceeds 99%.

Matching efficiency between CGEM-IT segments and ODC tracks is reasonable.

Parameterization of coordinate differences enables effective pattern recognition.

Abstract

The relative differences in coordinates of Cylindrical-Gas-Electron-Multiplier-Detector-based Inner Tracker (CGEM-IT) clusters are studied to search for track segments in CGEM-IT. With the full simulation of single muon track samples, clear patterns are found and parameterized for the correct cluster combinations. The cluster combinations satisfying the patterns are selected as track segment candidates in CGEM-IT with an efficiency higher than 99%. The parameters of the track segments are obtained by a helix fitting. Some chi-squared quantities, evaluating the differences in track parameters between the track segments in CGEM-IT and the tracks found in Outer-Drift-Chamber (ODC), are calculated and used to match them. Proper chi-squared requirements are determined as a function of transverse momentum and the matching efficiency is found reasonable.