Z<SUP>0</SUP> Data Analysis in L3 Cosmic-Ray Experiment

LIU Zhen-An

Chinese Physics C> 2003, Vol. 27> Issue(5) : 395-398

Z⁰ Data Analysis in L3 Cosmic-Ray Experiment

LIU Zhen-An ^,

Institute of High Energy Physics,CAS,Beijing 100039,China

Abstract
HTML
Reference
Related

PDF

Abstract：
The μ pair decayed from Z⁰ is a good means to check the quality of reconstruction program in L3 Cosmic experiment. This paper describes the method of selecting Z⁰→μ⁺μ^－events from data sample recorded during April,May,August and September,2000 when the LEP was running at Z⁰ energy.The momentum resolution of (5.47±0.25)% for 45 GeV muon is obtained.

References

[1]

. Baehr J.et al.Precision Measurement of the Cosmic Ray Muon Momentum Spectrum Between 20 and 2000 GeV/c,July 1996,L3 internal Note No.1977 2. L3 Collab.Nucl.Instr.And Meth.,1990,A289;35 3. LIU Zhen-An,CHEN Guo-Ming et al.High Energy Phys.and Nucle.Phys.,1998,22:990(in Chinese)(刘振安,陈国明等.高能物理与核物理,1998,22:900) 4. CHEN Guo-Ming,CHEN Gang.High Energy Phys.and Nucl.Phys.,1995,19:692(in Chinese)(陈国明,刚.物理与核物理，1995,19:692)

[1]	Ying Li , Dan-Dan Wang , Cai-Dian Lü . Pure annihilation type B→K0±(1430)K()^干 decays in the family non-universal Z0 model. Chinese Physics C, 2016, 40(1): 013101. doi: 10.1088/1674-1137/40/1/013101
[2]	LI Li , ZHANG Feng , WANG Rui-Guang , CHEN He-Sheng , MA Yu-Qian . Track Finding of Cosmic Multi-muon Events in the L3+C Muon Detector. Chinese Physics C, 2004, 28(7): 749-752.
[3]	SHAO Feng-Lan , XIE Qu-Bing , LI Shi-Yuan . Sensitive Observables for Color Connections in Three-Jet Events at Z⁰ Pole. Chinese Physics C, 2003, 27(6): 479-483.
[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]	Liu Zhenan , Chen Guoming , Chen Hesheng , Tang Xiaowei . Measurement of the τ Polarization Asymmetry in τ→a₁ v→π^±π⁰π⁰v Decay at Z⁰ Peak. Chinese Physics C, 1998, 22(11): 990-995.
[6]	Xie Yigang , Huang Xiuping , Lin Jianfeng , Xu Rongfen . Hadron Multiplicity Distributions and the Related Parameters in e⁺e^－ Annihilation at Z⁰ Energy Region. Chinese Physics C, 1996, 20(11): 972-981.
[7]	Ding Yibing , Li Xueqian , Wang Jianxiong , Zhang Zhaoxi , Xie Yuehong . On the Observation Effects of Higgs Particle in e⁺e^—→bb Z⁰ and tt－Z⁰ at LEP Ⅱ and NLC. Chinese Physics C, 1996, 20(11): 982-990.
[8]	BES Collaboration . Experimental Study of f₀ (975) in the J/ψ Decays. Chinese Physics C, 1995, 19(4): 289-295.
[9]	Xie Yigang , Cai Yong . Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^- Annihilation at Z⁰ Energy. Chinese Physics C, 1994, 18(S3): 223-234.
[10]	CAO Pei-Yuan , WANG Cheng-Rui , HE Mao , ZHANG Nai-Jian , LI Jin-Yu , LI Jie , REN Jing-Ru , LU Sui-Ling . High Energy Gamma Rays and Hadrons in Atmospheric Cosmic Rays. Chinese Physics C, 1992, 16(10): 886-890.
[11]	LI Tie-Zhong . The Relation of Family and Extra Z⁰ Boson Number. Chinese Physics C, 1992, 16(1): 15-21.
[12]	ZHANG Zhao-Xi , CHEN Yu-Qi . The Production of B_c⁽B_c) Meson Through Z⁰ Boson Decay. Chinese Physics C, 1992, 16(4): 335-339.
[13]	JIN Bing-Nian , XU Ya-Di . Z⁰ Line Shape Fit. Chinese Physics C, 1992, 16(3): 197-201.
[14]	Jin Bingnian , Xu Yadi . Z⁰ Line Shape Fit. Chinese Physics C, 1992, 16(S1): 11-16.
[15]	LI Tie-Zhong . One Plan of Identifying Various Extra z⁰ Bosons Models. Chinese Physics C, 1991, 15(9): 804-811.
[16]	Li Tiezhong . A Scheme for Identifying Various Extra z⁰ Boson Models. Chinese Physics C, 1991, 15(S3): 273-281.
[17]	ZHU Yong-Sheng , ZHANG Liang-Sheng , GAO Wen-Xiu , ZHANG Ying-Ping , ZHAO Ping-De , ZHANG Jia-Wen , LI Fang , CHEN Le-Jun , XU Zhi-Qing . THE COSMIC RAY DATA ANALYSIS OF μ-COUNTER ARRAY IN BES. Chinese Physics C, 1990, 14(2): 102-109.
[18]	HAO Wei , LU Chang-Guo , QUE You-Kun , ZHOU Yue-Hua . A TRIGGER SCHEME FOR COSMIC RAY EXPERIMENT WITH A SAMPLE-AND-HOLD SYSTEM. Chinese Physics C, 1989, 13(4): 293-297.
[19]	LI Tie-Zhong . EXTRA Z⁰ BOSONS AND THE DIFFICULTY OF PROTON DECAY. Chinese Physics C, 1988, 12(4): 484-492.
[20]	LIU Yao-Yang . RADIATIVE DECAY OF Z⁰ AND HEAVY LEPTON. Chinese Physics C, 1985, 9(4): 505-507.

Access

Get Citation

LIU Zhen-An. Z⁰ Data Analysis in L3 Cosmic-Ray Experiment[J]. Chinese Physics C, 2003, 27(5): 395-398.

LIU Zhen-An. Z⁰ Data Analysis in L3 Cosmic-Ray Experiment[J]. Chinese Physics C, 2003, 27(5): 395-398. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2002-08-12
Revised: 1900-01-01

Article Metric

Article Views(3990)
PDF Downloads(589)
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

Z⁰ Data Analysis in L3 Cosmic-Ray Experiment

LIU Zhen-An ^,

Corresponding author: LIU Zhen-An,

Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 2002-08-12
Accepted Date: 1900-01-01
Available Online: 2003-05-05

Abstract: The μ pair decayed from Z⁰ is a good means to check the quality of reconstruction program in L3 Cosmic experiment. This paper describes the method of selecting Z⁰→μ⁺μ^－events from data sample recorded during April,May,August and September,2000 when the LEP was running at Z⁰ energy.The momentum resolution of (5.47±0.25)% for 45 GeV muon is obtained.