An extended segment pattern dictionary for a pattern matching tracking algorithm at BESⅢ

MA Chang-Li; ZHANG Yao; YUAN Ye; ZHENG Yang-Heng; HE Kang-Li; LI Wei-Dong; LIU Huai-Min; MA Qiu-Mei; WU Ling-Hui

doi:10.1088/1674-1137/37/6/066202

Chinese Physics C> 2013, Vol. 37> Issue(6) : 066202 DOI: 10.1088/1674-1137/37/6/066202

An extended segment pattern dictionary for a pattern matching tracking algorithm at BESⅢ

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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 the 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.

References

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Ablikim M et al. (BESⅢ collaboration), Nucl. Instrum. Methods A, 2010, 614: 345[2] CHAO K T et al. Modern Physics A, 2009, 24(1 supp.)[3] Preliminary Design Report of the BESⅢ Detector, Jan, (2004)[4] ZHANG Yao et al. HEP NP, 2007, 31(6): 570 (in Chinese)[5] LI Wei-Dong et al. The Offline Software for the BESⅢ Experi-ment. Proceeding of CHEP06. Mumbai, 2006

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MA Chang-Li, ZHANG Yao, YUAN Ye, ZHENG Yang-Heng, HE Kang-Li, LI Wei-Dong, LIU Huai-Min, MA Qiu-Mei, WU Ling-Hui and An extended segment pattern dictionary for a pattern matching tracking algorithm at BESⅢ[J]. Chinese Physics C, 2013, 37(6): 066202. doi: 10.1088/1674-1137/37/6/066202

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Received: 2012-07-20
Revised: 2012-08-16

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沈阳化工大学材料科学与工程学院沈阳 110142

An extended segment pattern dictionary for a pattern matching tracking algorithm at BESⅢ

Corresponding author: YUAN Ye,

Corresponding author: ZHENG Yang-Heng,

Received Date: 2012-07-20
Accepted Date: 2012-08-16
Available Online: 2013-06-05

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 the 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.