On the Observation Effects of Higgs Particle in e+e—→bb Z0 and tt－Z0 at LEP Ⅱ and NLC

Ding Yibing; Li Xueqian; Wang Jianxiong; Zhang Zhaoxi; Xie Yuehong

Chinese Physics C> 1996, Vol. 20> Issue(11) : 982-990

On the Observation Effects of Higgs Particle in e⁺e^—→bb Z⁰ and tt－Z⁰ at LEP Ⅱ and NLC

Department of Physics, Graduate School, The Chinese Academy of Sciences, Beijing 1000392 Department of Physics, Nankai University, Tianjin 3000713 Institute of High Energy Physics, The Chinese Academy of Sciences ,Beijing 1000394 Institute of Theoretical Physics, The Chinese Academy of Sciences ,Beijing 100080

Abstract
HTML
Reference
Related

PDF

Abstract：
According to the Minimal Standard Model and the Extended Standard Model with two Higgs doublets, we calculated the total cross sections and differential cross sections for the e⁺e^—→bb Z⁰ and tt－Z⁰ at the LEP Ⅱ and NLC energies in order tO study the possible observational effects of the Higgs particle. We found that the observation for the e⁺e^—→bb Z⁰ can give the information on the Higgs particle as long as the mass of the Higgs particle M_H≤140GeV. However, for the e⁺e^—→tt－Z⁰ the effect from Higgs particle will be completely suppressed by the electrowead background and cannot be observed, no matter whether the Higgs particle is heavy or light.

References

[1]

CDF Collaboration,iPhys/i,iRev/i,iLett/i,74（1995）2626;DoCollaboration,iPhys/i iRev/iiLett/i,74（1995）2632.[2] J.Gunion,H.Haber,G.Kane iet al/i,The Higgs Hunter's Guide,Addison-Wesley Pub.Co.（1990）NewYork.[3] E.Boos,M.Dubinin,iPhys/i,iLett/i.B（1993）147.[4] A.Stange,W.Brock,iPhys/i,iRev/i,D48（1993）2054;C.Geng,P.Turcotte,WHou,iPhys/iiLett/i,B339（1994）317.[5] V.Barger,J.Hewett,R,Phillips,iPhys/i,iRev/i,D41（1990）3421;J.Hewett,SLAC.PUB,6521（1994）.[6] A.Grant,EFI-94-24.[7] A.Sopezak,CERN-PPE/94-73and references in the paper.[8] C.-H.Chang,X-Q.Li,J.-X.Wang iet al/i,iPhys/i,iLett/i,B313（1993）389.

[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]	WANG Ru-Min , LU Gong-Ru , WANG En-Ke , YANG Ya-Dong . Probe the R-Parity Violating Supersymmetry Effects in the B0s—B0s Mixing. Chinese Physics C, 2007, 31(4): 332-336.
[3]	MA Lian-Liang , WANG Ping , ZHU Yong-Sheng , ZHANG Xue-Yao . Calculation and Simulation for the Initial State Radiation Correction in e+e-→ωπ0. Chinese Physics C, 2004, 28(10): 1021-1025.
[4]	LIU Zhen-An . Z⁰ Data Analysis in L3 Cosmic-Ray Experiment. Chinese Physics C, 2003, 27(5): 395-398.
[5]	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.
[6]	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.
[7]	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.
[8]	Dong Yubing , Shen Pengnian , Yu Youwen , Zhang Zongye . The Color Screening Effect on bb System. Chinese Physics C, 1994, 18(6): 547-552.
[9]	LIU Liang-Gang . ρ⁰-ω Mixing Effect in the (ρ⁰,ω)→e⁺e^－ Pair Decay. Chinese Physics C, 1993, 17(7): 614-618.
[10]	ZHANG Zhaoxi , LI Xueqian , YANG Maozhi , WANG Jianxiong . The Study on the Production of tc at LEPⅡ Energy in the Extended Standard Model with Two Higgs-doublets. Chinese Physics C, 1993, 17(12): 1081-1090.
[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]	DING Yi-Bing , QIN Dan-Hua , ZHAO Guang-Da . TWO-HIGGS-DOUBLET MODELS AND SPLITTINGS OF tt p-STATES. Chinese Physics C, 1990, 14(2): 188-192.
[18]	LI Tie-Zhong . EXTRA Z⁰ BOSONS AND THE DIFFICULTY OF PROTON DECAY. Chinese Physics C, 1988, 12(4): 484-492.
[19]	HUANG Tao , XIE Yi-Cheng . A PHYSICAL CONSEQUENCE OF THE GAUGE INVARIANCE IN THE PROCESS π⁰→γγ. Chinese Physics C, 1985, 9(4): 437-441.
[20]	LIU Yao-Yang . RADIATIVE DECAY OF Z⁰ AND HEAVY LEPTON. Chinese Physics C, 1985, 9(4): 505-507.

Access

Get Citation

Ding Yibing, Li Xueqian, Wang Jianxiong, Zhang Zhaoxi and Xie Yuehong. On the Observation Effects of Higgs Particle in e⁺e^—→bb Z⁰ and tt－Z⁰ at LEP Ⅱ and NLC[J]. Chinese Physics C, 1996, 20(11): 982-990.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3234)
PDF Downloads(521)
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

On the Observation Effects of Higgs Particle in e⁺e^—→bb Z⁰ and tt－Z⁰ at LEP Ⅱ and NLC

Corresponding author: Ding Yibing,

Department of Physics, Graduate School, The Chinese Academy of Sciences, Beijing 1000392 Department of Physics, Nankai University, Tianjin 3000713 Institute of High Energy Physics, The Chinese Academy of Sciences ,Beijing 1000394 Institute of Theoretical Physics, The Chinese Academy of Sciences ,Beijing 100080

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1996-11-05

Abstract: According to the Minimal Standard Model and the Extended Standard Model with two Higgs doublets, we calculated the total cross sections and differential cross sections for the e⁺e^—→bb Z⁰ and tt－Z⁰ at the LEP Ⅱ and NLC energies in order tO study the possible observational effects of the Higgs particle. We found that the observation for the e⁺e^—→bb Z⁰ can give the information on the Higgs particle as long as the mass of the Higgs particle M_H≤140GeV. However, for the e⁺e^—→tt－Z⁰ the effect from Higgs particle will be completely suppressed by the electrowead background and cannot be observed, no matter whether the Higgs particle is heavy or light.