Primary vertex reconstruction based on the Kalman filter technique at BESⅢ

XU Min; HE Kang-Lin; ZHANG Zi-Ping; WANG Yi-Fang; BIAN Jian-Ming; FU Cheng-Dong; HUANG Bin; JI Xiao-Bin; SUN Sheng-Sen; YAN Liang; ZHANG Jian-Yong

doi:10.1088/1674-1137/34/1/017

Chinese Physics C> 2010, Vol. 34> Issue(1) : 92-98 DOI: 10.1088/1674-1137/34/1/017

Primary vertex reconstruction based on the Kalman filter technique at BESⅢ

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Abstract：
Primary vertex reconstruction is crucial to estimate the beam profile in collision experiments. We study the principle of an iterative process, called the Kalman filter method, and apply it to primary vertex reconstruction at BESⅢ. A Newton procedure to find the zero point of the distance function's gradient is used for primary vertex finding in 3-dimensional space. Results are obtained based on raw data at BESⅢ.

References

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XU Min, HE Kang-Lin, ZHANG Zi-Ping, WANG Yi-Fang, BIAN Jian-Ming, FU Cheng-Dong, HUANG Bin, JI Xiao-Bin, SUN Sheng-Sen, YAN Liang and ZHANG Jian-Yong. Primary vertex reconstruction based on the Kalman filter technique at BESⅢ[J]. Chinese Physics C, 2010, 34(1): 92-98. doi: 10.1088/1674-1137/34/1/017

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Received: 2009-02-26
Revised: 2009-03-30

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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

Primary vertex reconstruction based on the Kalman filter technique at BESⅢ

Corresponding author: XU Min,

Received Date: 2009-02-26

Accepted Date: 2009-03-30

Available Online: 2010-01-05

Abstract: Primary vertex reconstruction is crucial to estimate the beam profile in collision experiments. We study the principle of an iterative process, called the Kalman filter method, and apply it to primary vertex reconstruction at BESⅢ. A Newton procedure to find the zero point of the distance function's gradient is used for primary vertex finding in 3-dimensional space. Results are obtained based on raw data at BESⅢ.

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Primary vertex reconstruction based on the Kalman filter technique at BESⅢ

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