Electron Identification in the Measurement of MichelParameter in τ Lepton Decay

Qian Chengde; Feng Sheng; Tong Guoliang; Wu Yigen

Chinese Physics C> 1998, Vol. 22> Issue(5) : 388-392

Electron Identification in the Measurement of MichelParameter in τ Lepton Decay

Applied Physics Department, Shanghai Jiaotong University, Shanghai 2000302 Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 10039

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Abstract：
The Michel parameter ρ_τ→e is determined through studying the electron energy spectrum of τ→eνν decay by Beijing Spectrometer(BES). This paper describes the electron identification with dE/ dx、β、E/p informations for charged particles and their, adequate combinations using e⁺e^－ collision data collected at s=4.03GeV.

References

[1]	Glashow S L.Nucl.Phys,1961,22:579─588;Weinberg S.Phys.Rev.,1967,19:1264[2]Tang Xiaowei.Positron Electron Physics.Beijing:Sience Pres,1995.431（唐孝威。正负电子对撞物理。北京：科学出版社1995.431）[3]Ding H L et al.Beijing Spectrometer.High Energy Physics and Neuclear Physics（inChinese）,1992,16:769-789

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Qian Chengde, Feng Sheng, Tong Guoliang and Wu Yigen. Electron Identification in the Measurement of MichelParameter in τ Lepton Decay[J]. Chinese Physics C, 1998, 22(5): 388-392.

Qian Chengde, Feng Sheng, Tong Guoliang and Wu Yigen. Electron Identification in the Measurement of MichelParameter in τ Lepton Decay[J]. Chinese Physics C, 1998, 22(5): 388-392. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Electron Identification in the Measurement of MichelParameter in τ Lepton Decay

Corresponding author: Qian Chengde,

Applied Physics Department, Shanghai Jiaotong University, Shanghai 2000302 Institute of High Energy Physics,The Chinese Academy of Sciences,Beijing 10039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1998-05-05

Abstract: The Michel parameter ρ_τ→e is determined through studying the electron energy spectrum of τ→eνν decay by Beijing Spectrometer(BES). This paper describes the electron identification with dE/ dx、β、E/p informations for charged particles and their, adequate combinations using e⁺e^－ collision data collected at s=4.03GeV.