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

Abstract
HTML
Reference
Related

PDF

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

[1]	ZHOU Xia , ZHENG Xiao-Ping . Non-leptonic Weak Interaction with Quark Matter in Magnetic Field. Chinese Physics C, 2007, 31(11): 1003-1009.
[2]	HU Hai-Ming , WENG Yao , GUO Yi-Qing , JIN Yi , ZHANG Bing-Xin , HU Jun-Hui , GAO Yuan-Ning . Improvement on Hadronic Event Selection in R Measurement. Chinese Physics C, 2007, 31(9): 802-809.
[3]	XU Ming-Mei , LIU Lian-Shou . A Monte Carlo Study on the Reconstruction Method for Instanton in Deep-Inelastic e⁺p Scattering. Chinese Physics C, 2007, 31(2): 119-124.
[4]	LIU Lang , WANG Pei-Wei , CHEN Hong , MENG Jie . Investigation of α-Clustering Structure in Light Nuclei with RMF+SLAP Method. Chinese Physics C, 2006, 30(S2): 227-229.
[5]	JIANG Xiao-Guo , LI Cheng-Gang , WANG Yuan , DAI Wen-Hua , XIA Lian-Sheng , CHEN Nan , YANG Guo-Jun . Accurate Burst Trigger Mode for Dragon-Ⅰ Electron Beam Measurement System. Chinese Physics C, 2006, 30(8): 784-787.
[6]	DU Ying-Chao , HUANG Wen-Hui , TANG Chuan-Xiang , HUA Jian-Fei , CHENG Cheng , DU Tai-Bin , XIA Bing , He Xiao-Zhong , DU Qiang , ZHENG Shu-Xin , CHEN Huai-Bi , LIN Yu-Zheng . Preliminary Experiments of Thomson Scattering X-ray Source: Measurements of Electron beam's Parameters and Their Influence on the X-ray Performance. Chinese Physics C, 2006, 30(S1): 84-86.
[7]	OUYANG Xiao-Ping , LI Zhen-Fu , WANG Qiu-Shu , HUO Yu-Kun . Thin Plastic Scintillating Foil for Measuring Pulsed Neutron Flux in High Gamma-Ray Environment. Chinese Physics C, 2005, 29(4): 399-403.
[8]	CHEN Chi-Yi , SHEN You-Gen , FENG Bo . Spontaneous Leptogenesis in Brans-Dicke Cosmology. Chinese Physics C, 2005, 29(11): 1033-1040.
[9]	LV Cai-Dian . Toward a Theory of Non-leptonic Two-Body B Decays in QCD. Chinese Physics C, 2002, 26(S1): 20-24.
[10]	BES Collaboration . Measurement of Inclusive Semileptonic Branching Fractions for D^－→e^－X and D⁰→e^－X. Chinese Physics C, 2002, 26(6): 547-556.
[11]	LIU Chun-Xiu , LIANG Zuo-Tang . Spin Transfer in High-Energy Hadronization Processes and Polarization of Hyperon in the Lepton-Induced Reactions. Chinese Physics C, 2001, 25(6): 476-486.
[12]	LIU Bo , PENG GuangXiong , SHEN PengNian , HE ZeJun , CHEN Hong , MA WeiXing , ZHAO EnGuang , LU HongChao . Leptonic Decay and Radiative Transion of ψ′in Medium at Finite Temperature and Density. Chinese Physics C, 2000, 24(10): 969-973.
[13]	Zhu Yongsheng , Chen Jiangchuan , Cheng Baosen . The δ Ray Effect in Particle ldentification via Cherenkov Correlated Timing. Chinese Physics C, 1998, 22(7): 577-586.
[14]	BES Collaborator . Measurement of Michel Parameter in τ Decay. Chinese Physics C, 1998, 22(11): 961-968.
[15]	He Zhiyong , Duan Limin , Li Zuyu , Jin Genming , Luo Qingzheng , Wu Heyu , Zhang Baoguo , Wen Wanxin , Qi Yujin , Dang Bingrong , Dai Guangxi . Emission Time Measurements of Light Particles from ⁴⁰Ar+¹⁹⁷Au Collisions in Intermediate Energies. Chinese Physics C, 1996, 20(1): 8-12.
[16]	BES Collaboration . Determination of J/ψ Leptonic Branching Fraction Via ψ(2S)→π⁺π^－J/ψ. Chinese Physics C, 1996, 20(2): 97-106.
[17]	BES Collaboration . Precise Measurement of τ Mass. Chinese Physics C, 1995, 19(2): 97-105.
[18]	RONG Gang , CA Ji-Mao , MAO Hu-Shun , WANG Tai-Jie , BAI Jing-Zhi , LI Wei-Guo . Application of dE/dx Method for e/π Identification to the Measurement of the Mass of τ Heavy Lepton by BES. Chinese Physics C, 1993, 17(10): 865-872.
[19]	HUANG CHAO-SHANG , DAI YUAN-BEN . ANOMALOUS MAGNETIC MOMENT IN COMPOSITE MODEL OF LEPTONS. Chinese Physics C, 1981, 5(6): 699-705.
[20]	WU JING-YUAN , WU DAN-DI , LI XIAO-YUAN . HEAVY LEPTON τ PRODUCED IN e⁺e^- ANNIHILATION BY THE INTERFERENCE BETWEEN ELECTROMAGNETIC AND WEAK INTERACTIONS AND PARITY VIOLATION EFFECTS. Chinese Physics C, 1979, 3(1): 108-112.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(4042)
PDF Downloads(508)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
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.