Decay vertex reconstruction and 3-dimensional lifetime determination at BESⅢ

XU Min; HE Kang-Lin; ZHANG Zi-Ping; WANG Yi-Fang

doi:10.1088/1674-1137/33/6/005

Chinese Physics C> 2009, Vol. 33> Issue(6) : 428-435 DOI: 10.1088/1674-1137/33/6/005

Decay vertex reconstruction and 3-dimensional lifetime determination at BESⅢ

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Abstract：
This paper focuses mainly on the vertex reconstruction of resonance particles with a relatively long lifetime such as K_S⁰, Λ, as well as on lifetime measurements using a 3-dimensional fit. The kinematic constraints between the production and decay vertices and the decay vertex fitting algorithm based on the least squares method are both presented. Reconstruction efficiencies including experimental resolutions are discussed. The results and systematic errors are calculated based on a Monte Carlo simulation.

References

[1]

. BES0 Design Report, Interior Document in Institute ofHigh Energy Physics, 20042. Harris F A (BES Collab.). arXiv: physics/06060593. LI W D, LIU H M et al. The Offline Software for the BES0 Experiment. Proceeding of CHEP06. Mumbai, 20064. DENG Z Y et al. HEP NP, 2006, 30(5): 371-377 (inChinese)5. Agostinelli S et al (Geant4 Collab.). Nucl. Instrum. Meth-ods A, 2003, 506: 2506. XU Min. The Report on Vertex Reconstruction, July 2008,BES0 annual meeting7. Paul Avery. Fitting Theory Writeups and References8. Particle Data Group. 20089. Verkerke W, Kirkby D. RooFit Users Manual v2.07, Jan200610. ZHANG Y et al. HEP NP, 2007, 31(6): 570-575 (inChinese)11. LIU Q G et al. Chinese Physics C, 2008, 32(7): 565-57112. WANG J K. The Report on MDC Kalman Track Fitting,July 2008, BES0 annual meeting

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[11]	LIU Qiu-Guang , ZANG Shi-Lei , LI Wei-Guo , MAO Ze-Pu , BIAN Jian-Ming , CAO Guo-Fu , CAO Xue-Xiang , CHEN Shen-Jian , DENG Zi-Yan , FU Cheng-Dong , GAO Yuan-Ning , HE Kang-Lin , HE Miao , HUA Chun-Fei , HUANG Bin , HUANG Xing-Tao , JI Xiao-Bin , LI Fei , LI Hai-Bo , LI Wei-Dong , LIANG Yu-Tie , LIU Chun-Xiu , LIU Huai-Min , LIU Suo , LIU Ying-Jie , MA Qiu-Mei , MA Xiang , MAO Ya-Jun , MO Xiao-Hu , PAN Ming-Hua , PANG Cai-Ying , PING Rong-Gang , QIN Gang , QIN Ya-Hong , QIU Jin-Fa , SUN Sheng-Sen , SUN Yong-Zhao , WANG Ji-Ke , WANG Liang-Liang , , , , , , , , , , , . Track reconstruction using the TSF method for the BESⅢ main drift chamber. Chinese Physics C, 2008, 32(7): 565-571. doi: 10.1088/1674-1137/32/7/011
[12]	MA Xiang . Determination of event start time at BESⅢ. Chinese Physics C, 2008, 32(9): 744-749. doi: 10.1088/1674-1137/32/9/012
[13]	WANG Zhe , YUAN Ye , ZHANG Chang-Chun . Study of K_s^o Reconstruction and Lifetime Measurement at BESⅡ. Chinese Physics C, 2003, 27(1): 1-6.
[14]	ZHENG Jian-Ping , BAI Jing-Zhi , ZHAO Meng , YANG Chun-Min , SUN Han-Sheng , LI Jin , LI Xiao-Nan , MAO Ze-Pu , CHEN Guang-Pei , YANG Hong-Xun , LIU Yan , YUAN Ye , SHEN Hong , LIU Zhong-Xiu , WAN Zong-Ru , YANG Jie . Vertex Chamber of BESⅡ. Chinese Physics C, 2001, 25(5): 423-428.
[15]	Yang Changgen , Chen Hesheng , Jin Bingnian , Tang Xiaowei , M. Pohi . Fitting Method and Error Study for Tau Lifetime Measurement of L3 Experiment. Chinese Physics C, 1994, 18(S3): 243-250.
[16]	Yang Changgen , Chen Hesheng , Jin Bingnian , Tang Xiaowei , M. Pohl . Improvements of the L3 TEC Track Resolution of Vertex. Chinese Physics C, 1994, 18(S3): 215-222.
[17]	Shen Kun , Qiu Zhongping . Vertex Correction at Finite Temperature and Decoupling Phase Transition in 2+1-Dimensional Chiral Gross-Neveu Model. Chinese Physics C, 1993, 17(S3): 261-270.
[18]	LIU Jin-Ming , GONG Di . Variational Study of 3-Dimensional SU(2) Lattice Gauge Theory with Independent Plaquette Trial Action. Chinese Physics C, 1993, 17(2): 128-133.
[19]	Liu Jinming , Gong Di . Variational Study of 3-Dimensional SU(2) Lattice Gauge Theory with Independent Plaquette Trial Action. Chinese Physics C, 1993, 17(S1): 45-52.
[20]	LIN Jin-Hu , ZHENG Zhe-Zhu . THE HADRON 1→0 DECAY PROCESSESIN A 3+1 DIMENSIONAL THEORY. Chinese Physics C, 1986, 10(2): 153-157.

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XU Min, HE Kang-Lin, ZHANG Zi-Ping and WANG Yi-Fang. Decay vertex reconstruction and 3-dimensional lifetime determination at BESⅢ[J]. Chinese Physics C, 2009, 33(6): 428-435. doi: 10.1088/1674-1137/33/6/005

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Received: 2008-09-09
Revised: 2008-11-25

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Decay vertex reconstruction and 3-dimensional lifetime determination at BESⅢ

Corresponding author: XU Min,

Received Date: 2008-09-09

Accepted Date: 2008-11-25

Available Online: 2009-06-05

Abstract:

This paper focuses mainly on the vertex reconstruction of resonance particles with a relatively long lifetime such as K_S⁰, Λ, as well as on lifetime measurements using a 3-dimensional fit. The kinematic constraints between the production and decay vertices and the decay vertex fitting algorithm based on the least squares method are both presented. Reconstruction efficiencies including experimental resolutions are discussed. The results and systematic errors are calculated based on a Monte Carlo simulation.

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Decay vertex reconstruction and 3-dimensional lifetime determination at BESⅢ

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通讯作者: 陈斌, bchen63@163.com

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