Track Finding of Cosmic Multi-muon Events in the L3+C Muon Detector

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LI Li, ZHANG Feng, WANG Rui-Guang, CHEN He-Sheng and MA Yu-Qian. Track Finding of Cosmic Multi-muon Events in the L3+C Muon Detector[J]. Chinese Physics C, 2004, 28(7): 749-752.
LI Li, ZHANG Feng, WANG Rui-Guang, CHEN He-Sheng and MA Yu-Qian. Track Finding of Cosmic Multi-muon Events in the L3+C Muon Detector[J]. Chinese Physics C, 2004, 28(7): 749-752. shu
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Received: 2003-12-16
Revised: 1900-01-01
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Track Finding of Cosmic Multi-muon Events in the L3+C Muon Detector

    Corresponding author: LI Li,
  • Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,CAS,Beijing 100039,China

Abstract: We describe a track finding method based on the Combinatorial Hough Transform (CHT) in the large drift chambers of the L3+C experiment at CERN. With the feature of near parallelism of muons in cosmic multi-muon events, the dominant direction can be estimated from the histogram of directions of segments. Then the CHT in finding the whole track can be greatly optimized. The cross octant reconstruction program can efficiently reconstruct cosmic muon events with multiplicity up to 50.

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