Fitting Method and Error Study for Tau Lifetime Measurements of L3 Experiment

Yang Changgen; Chen Hesheng; Jin Bingnian; Tang Xiaowei

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1994, Vol. 18> Issue(9) : 794-799

Fitting Method and Error Study for Tau Lifetime Measurements of L3 Experiment

Institute of High Energy Physics, Acadamia Sinica, Beijing 1000392 ETH-Z, Institute fur Hochenergiephysik, 8093-Zurich, Switzerland

Abstract
HTML
Reference
Related

PDF

Abstract：
The sign-flip probability of the impact parameter in the measurement of the tau lifetime is studied. The probability of the impact parameter with the negative value is introduced into the formula to fit the tau lifetime in the L3 experiment.The systematic errors of the drift velocity and grid time calibration are also studied by using the special designed L3 Time Expansion Chamber (TEC).

References

[1]

M.Perletal,Phys.Rev.Lett.,35（1975）1489.[2]DASP Colla,Phys.Lett,B73（1978）109;DELCO Colla,Phys.Lett,42（1979）749.[3]Y.S,Tsai,Phys.Rev.,D4（1971）2821.[4]BES合作组，高能物理与核物理，16（1992）865.[5]Rev.of Particle Properties,Phys Lett,B239（1990）1-516.[6]L3 Colla,Nucl.Instr.and Meth,A289（1990）35.[7]TEC group,”Construction and Performance of the L3 Central Tracking Detector“,to be submitted to NIM.[8]杨长根，τ轻子寿命测量，高能物理研究所博士论文，1993.[9]L3 Colla.,Phys.Lett.,B273（1991）451.[10]L3 Colla,CERN-PPE/93-31.[11]杨长根等，高能物理与核物理，18（1994）687.

[1]	MA Yuan-Yuan , LIU Jian-Bei , CHEN Chang , CHEN Yuan-Bai , JIN Yan , LIU Rong-Guang , MA Xiao-Yan , TANG Xiao , WANG Lan , XU Mei-Hang , ZHU Min-Xuan , ZHU Qi-Ming . The Experimental Study of the Gas Gain of He/C3H8(60/40). Chinese Physics C, 2005, 29(5): 481-484.
[2]	MO Xiao-Hu , ZHU Yong-Sheng . Correlated Data Fitting and Error Analysis in ψ(2S) Scan Experiment. Chinese Physics C, 2003, 27(6): 474-478.
[3]	LIU Zhen-An . Z⁰ Data Analysis in L3 Cosmic-Ray Experiment. Chinese Physics C, 2003, 27(5): 395-398.
[4]	LI Zhong-Chao , YU Zhong-Qiang , GUO Ya-Nan , XU Yu-Peng , YAO Zhi-Guo , LI De . Introduction of the Trigger System and the Measurement for Trigger Efficiency at L3+Cosmics Experiment. Chinese Physics C, 2002, 26(2): 172-179.
[5]	GOU Liang , DONG FangXiao , ZHOU XianJian . Analytical Helicity Amplitudes for Z→3γ and It's Related Processes and Discussion of Polarization Vectors. Chinese Physics C, 2000, 24(12): 1098-1105.
[6]	YANG Min , CHEN GuoMing , YANG HaiJun , XIONG ZhaoHua , LU YuSheng , CHEN HeSheng . Measurement of the Cross-Section of Single W Boson Production and the Anomalous Couplings on L3 Experiment. Chinese Physics C, 2000, 24(12): 1073-1080.
[7]	Wu Heyu , Dai Guangxi . A Test of Sequential Decay of Hot Nuclei Around 3MeV/u Excitation Energy. Chinese Physics C, 1994, 18(S1): 5-12.
[8]	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.
[9]	Yang Changgen , Chen Hesheng , Jin Bingnian , Tang Xiaowei . Improvements of The L3 TEC Track Resolution at Vertex. Chinese Physics C, 1994, 18(8): 687-693.
[10]	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.
[11]	LI Shiqing , XU Dingan , LIU Fuqing . Study of 3-α Cluster Ground State Using CHHE-MRT Method. Chinese Physics C, 1993, 17(12): 1116-1119.
[12]	CHEN Guo-Ming , CHEN He-Sheng , JIN Bing-Nian , TANG Xiao-Wei , TONG Guo-Liang , WU Yi-Gen , ZHONG Chong-Chang . e/π Separation analysis from L3 Calorimeter Beam Test. Chinese Physics C, 1992, 16(1): 1-10.
[13]	Chen Guoming , Chen Hesheng , Jin Bingnian , Tang Xiaowei , Tong Guoliang , Wu Yigen , Zhong Chongchang . e/π Separation Analysis from L3 Calorimeter Beam Test. Chinese Physics C, 1992, 16(S1): 1-10.
[14]	CHEN Guo-Ming , CHEN He-Sheng , TANG Xiao-Wei , TONG Guo-Liang , WU Yi-Gen , ZHANG Shou-Yu , WANG Yi-Fang . The Measurement of the Performance of L3 Hadron Calorimeter With BGO. Chinese Physics C, 1991, 15(10): 865-874.
[15]	YE Jing-Bo , XU Zi-Zong , CHEN Hong-Fang , MA Wen-Gan , ZHANG Zi-Ping . ERROR DISCUSSION OF LEP/L3 LUMINOSITY MEASUREMENT. Chinese Physics C, 1990, 14(3): 207-211.
[16]	CHEN Chang , CHEN He-Sheng , LI Huan-Tie , LI Xiao-Guang , LV Yu-Sheng , MAO Yu-Fang , TANG Xiao-Wei , TONG Guo-Liang , WANG Meng-Qi , XU Hong-Zhang , YANG Chang-Gen , YANG Kang-Shu , YANG Qing-Yun , ZHANG Shou-Yu , ZHU Yong-Sheng , ZHUANG Hong-Lin . THE STUDY AND PRODUCTION OF PWC'S FOR THE FIRST MODULE OF L3 HADRON CALORIMETER. Chinese Physics C, 1988, 12(5): 587-592.
[17]	FU De-Ji , XIA Ke-Ding , PAN Wei-Ping . THE SOLUTIONS FOR j³ SYSTEM FROM SHELL MODEL AND GENERATOR COORDINATE METHOD. Chinese Physics C, 1984, 8(5): 602-610.
[18]	WANG Shu-Ying . METHOD OF ANALYSING POSITRON ANNIHILATION LIFETIME SPECTRUM WITH A MULTI EXPONENTIAL CURVE FITTING. Chinese Physics C, 1983, 7(4): 408-414.
[19]	SHEN JIAN-PING , WU HUI-FANG . A DISCUSSION ON THE Λ HYPER-NUCLEUS WITH A=3. Chinese Physics C, 1982, 6(4): 517-519.
[20]	ZHOU GUANG-ZHAO , . SOME DISCUSSIONS ON THE SU(3)×U(1) ELECTRO-WEAK UNIFIED MODEL OF LEPTONS AND QUARKS. Chinese Physics C, 1981, 5(1): 39-46.

Access

Get Citation

Yang Changgen, Chen Hesheng, Jin Bingnian and Tang Xiaowei. Fitting Method and Error Study for Tau Lifetime Measurements of L3 Experiment[J]. Chinese Physics C, 1994, 18(9): 794-799.

Yang Changgen, Chen Hesheng, Jin Bingnian and Tang Xiaowei. Fitting Method and Error Study for Tau Lifetime Measurements of L3 Experiment[J]. Chinese Physics C, 1994, 18(9): 794-799. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3686)
PDF Downloads(506)
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

Fitting Method and Error Study for Tau Lifetime Measurements of L3 Experiment

Corresponding author: Yang Changgen,

Institute of High Energy Physics, Acadamia Sinica, Beijing 1000392 ETH-Z, Institute fur Hochenergiephysik, 8093-Zurich, Switzerland

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-09-05

Abstract: The sign-flip probability of the impact parameter in the measurement of the tau lifetime is studied. The probability of the impact parameter with the negative value is introduced into the formula to fit the tau lifetime in the L3 experiment.The systematic errors of the drift velocity and grid time calibration are also studied by using the special designed L3 Time Expansion Chamber (TEC).