Combinative Track Reconstruction with MDC and VC Hit Points at BESⅡ

ZENG Yu; LIU Jing; MAO Ze-Pu; QIU Jin-Fa; HUANG Xiu-Ping; YUAN Ye; MA Qiu-Mei

Chinese Physics C> 2004, Vol. 28> Issue(12) : 1264-1268

Combinative Track Reconstruction with MDC and VC Hit Points at BESⅡ

Institute of High Energy Physics,CAS,Beijing 100049,China

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Abstract：
the method of combinative track reconstruction with the hits in main drift chamber and vertex chamber at besⅡ detector is described, and the corresponding calibration method is also given. checked by experimental data and monte carlo generated data, the results show that the correctness and reliability of these methods have been proved, and the momentum resolution for charged particles has been improved by more than 20%.

References

[1]

.BES Collab. Nucl . Instr. Meth. , 2001, A458: 6272. CHEN Guang-Pei et al. High Energy Phys. and Nucl. Phys. , 1998,22: 985(in Chinese)(陈光培等.高能物理与核物理,1998,22:985) 3. Walter H .Toki, SLAC-PUB-5232, March, 19904. CHEN Guang-Pei et al . The 4th BES Annual Meeting, 1995, 1155. LIU Jing et al . High Energy Phys. and Nucl. Phys. , 1998, 22: 587(in Chinese)(刘靖等.高能物理与核物理,1998,22:587)6. LIU Jing et al. The 5th BES Annual Meeting, 1996, 1497. MAO Ze-Pu et al. High Energy Phys. and Nucl. Phys. , 1996, 12: 1073(in Chinese)(毛泽普等.高能物理与核物理,1996,12:1073) 8. CHEN Guang-Pei et al. High Energy Phys. and Nucl. Phys. , 2000,24: 1167(in Chinese)(陈光培等.高能物理与核物理,2000,24:1167) 9. ZENG Yu, MAO Ze-Pu. High Energy Phys. and Nucl. Phys. , 2003,27: 808(in Chinese)(曾瑜,毛泽普.高能物理与核物理,2003,27:808)

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ZENG Yu, LIU Jing, MAO Ze-Pu, QIU Jin-Fa, HUANG Xiu-Ping, YUAN Ye and MA Qiu-Mei. Combinative Track Reconstruction with MDC and VC Hit Points at BESⅡ[J]. Chinese Physics C, 2004, 28(12): 1264-1268.

ZENG Yu, LIU Jing, MAO Ze-Pu, QIU Jin-Fa, HUANG Xiu-Ping, YUAN Ye and MA Qiu-Mei. Combinative Track Reconstruction with MDC and VC Hit Points at BESⅡ[J]. Chinese Physics C, 2004, 28(12): 1264-1268. shu

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Received: 2004-03-18
Revised: 1900-01-01

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