Improvements of the L3 TEC Track Resolution of Vertex

Yang Changgen; Chen Hesheng; Jin Bingnian; Tang Xiaowei; M. Pohl

Chinese Physics C> 1994, Vol. 18> Issue(S3) : 215-222

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

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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.
- TEC ,
- track vertex ,
- refit ,
- offsets
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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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沈阳化工大学材料科学与工程学院沈阳 110142

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

Received Date: 1993-04-15

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.