Improvements of the L3 TEC Track Resolution of Vertex

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Yang Changgen, Chen Hesheng, Jin Bingnian, Tang Xiaowei and M. Pohl. Improvements of the L3 TEC Track Resolution of Vertex[J]. Chinese Physics C, 1994, 18(S3): 215-222.
Yang Changgen, Chen Hesheng, Jin Bingnian, Tang Xiaowei and M. Pohl. Improvements of the L3 TEC Track Resolution of Vertex[J]. Chinese Physics C, 1994, 18(S3): 215-222. shu
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Received: 1993-04-15
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    Supported by the National Natural Science Foundation of China.

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Improvements of the L3 TEC Track Resolution of Vertex

  • 1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, China;
  • 2. ETH-Z, Institut fur Hochenergiephysik, 8093-Zurich, Switzerland
Fund Project:  Supported by the National Natural Science Foundation of China.

Abstract: Two methods are used to improve the L3 TEC track resolution at vertex. First, refit the lepton tracks by constrained curvature from high precision measurements on electron energy and muon moments. Second, correct the average value of track offsets in each half-sector of TEC. Combined methods improve the lepton track resolution at vertex from 137 μm to 60 μm.

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