A New Approach of the Kinematic Fit

ZHU Cheng-Guang; CHEN Ting-Yang; ZHANG Nai-Jian; HE Mao

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2003, Vol. 27> Issue(5) : 440-444

A New Approach of the Kinematic Fit

Department of Physics,Shandong University,Ji′,nan 250100, China2 Department of Physics,Nanjing University,Nanjing 210008,China

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Abstract：
A new approach of the kinematic fit in event reconstruction is introduced.In the new approach, the method of regula falsi is used to solve the constraint equations, instead of the conventional linear approximation. Applying this algorithm to E705/E771 Monte Carlo data of J/ψ→μ⁺+μ^－,the momentum resolution of J/ψ is significantly improved.

References

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ZHU Cheng-Guang, CHEN Ting-Yang, ZHANG Nai-Jian and HE Mao. A New Approach of the Kinematic Fit[J]. Chinese Physics C, 2003, 27(5): 440-444.

ZHU Cheng-Guang, CHEN Ting-Yang, ZHANG Nai-Jian and HE Mao. A New Approach of the Kinematic Fit[J]. Chinese Physics C, 2003, 27(5): 440-444. shu

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Received: 2002-07-30
Revised: 1900-01-01

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

A New Approach of the Kinematic Fit

Corresponding author: ZHU Cheng-Guang,

Department of Physics,Shandong University,Ji′,nan 250100, China2 Department of Physics,Nanjing University,Nanjing 210008,China

Received Date: 2002-07-30
Accepted Date: 1900-01-01
Available Online: 2003-05-05

Abstract: A new approach of the kinematic fit in event reconstruction is introduced.In the new approach, the method of regula falsi is used to solve the constraint equations, instead of the conventional linear approximation. Applying this algorithm to E705/E771 Monte Carlo data of J/ψ→μ⁺+μ^－,the momentum resolution of J/ψ is significantly improved.