Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e+e－ Annihilation at Z0 Energy Region

Xie Yigang; Chai Yong

Chinese Physics C> 1994, Vol. 18> Issue(9) : 778-787

Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^－ Annihilation at Z⁰ Energy Region

Xie Yigang ^, ,
Chai Yong

Institute of High Energy Physics, Academia Sinica, Beijing 100039

Abstract
HTML
Reference
Related

PDF

Abstract：
The charged multiplicity distributions of hadron final states in the e⁺e^－ annihilation at the 91.2 GeV Z⁰ energy region are fitted with Poisson shape in different rapidity windows for double and single hemisphere. The multiplicities which are in Poisson-like shapes can be got according to the parameter /D and fitting qualities are compared with the results derived from the relevant theoretical models.The relationship between the Poisson-like shape and KNO scaling is discussed. The connection between the parameters expressing the deviation from the Poisson shape and non-independent particle emission and multiplicity correlation strength is analyzed. The "shoulder structure" is observed in the central rapidity region and analyzed with multi-jets by using the JADE jet analysis algorithm.

References

[1]

D.Decampetal,ALEPH Collaboration,Phys.Lett,B273（1991）181;P.Abreuetal,DELPHI Collabiration,Z.Physics,C50（1990）185.[2]T.T.ChouandC.N.Yang,Phys.Lett.B167（1986）453;Phys Rev.Lett.,55（1985）1359;Phys.Lett,B193（1987）531.[3]T.T.ChouandC.N.Yang,Proceeding of 25th International Conferenceon High Energy Physics（Singapore,1991）,Vol.2,p1013.[4]A.Capellaetal,Phys.Rev.,D37（1988）1763.[5]P.Abreuetal,DELPHI Collaboration,Z.Phys.,C52（1991）271.[6]D.Decampetal,ALEPH Collaboration,Nucl.Inst.Meth,A294（1990）121.[7]D.Decampetal,ALEPH Collaboration,Phys.Lett.,B234（1990）209.[8]A.Wroblewski.Acta Phys.Pol,B4（1974）857.[9]S.Barshay,（internal paper of Ⅲ Physikalisches Institut Technische Hochsckule Aachen,Germany）,Possibility of Observable New Behavier for Multiparticle Production in e+e- Annihilation at LEP.[10]A.Giovannini et al,XXI International Symposiumon Multiparticle Dynamics（1991）,Wuhan,China,p285.[11]W.Braunschweig et al,TASSO Collaboration,Z.Phys.,C45（1989）193.[12]Yi-GangXieetal,ALEPH Collaboration,XXI International Symposiumon Multiparticle Dynamic(1991), Wuhan, China, p172 [13]P.Abreu et al., DELPHI Collaboration, Z. Phys., C56(1992)63.[14]W.Bartel et al., JADE Collaboration, Z. Phys., C33(1986)23.

[1]	LIU Zhen-An . Z⁰ Data Analysis in L3 Cosmic-Ray Experiment. Chinese Physics C, 2003, 27(5): 395-398.
[2]	WANG Hai-Long , LIU Xi-Ming , WANG Yu-Shui . Mass Dependence of Hadron Production Rates in e⁺e^－ Annihilations at High Energy. Chinese Physics C, 2002, 26(5): 471-476.
[3]	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.
[4]	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.
[5]	Lan Qikai , Liu Lianshou . Variation of Multiplicity Distributions for Mean Transverse Momentum with Cutoff in Hardon-Hardon Collisions. Chinese Physics C, 1995, 19(9): 826-833.
[6]	LIU Liang-Gang . ρ⁰-ω Mixing Effect in the (ρ⁰,ω)→e⁺e^－ Pair Decay. Chinese Physics C, 1993, 17(7): 614-618.
[7]	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.
[8]	LI Tie-Zhong . The Relation of Family and Extra Z⁰ Boson Number. Chinese Physics C, 1992, 16(1): 15-21.
[9]	JIN Bing-Nian , XU Ya-Di . Z⁰ Line Shape Fit. Chinese Physics C, 1992, 16(3): 197-201.
[10]	Jin Bingnian , Xu Yadi . Z⁰ Line Shape Fit. Chinese Physics C, 1992, 16(S1): 11-16.
[11]	PEI Guo-Xi , XIE Jia-Lin , ZHOU Shu , SUN Song-Lan . OPTIMIZATION OF BEPC POSITRON SOURCE. Chinese Physics C, 1990, 14(2): 110-117.
[12]	LAI Xiao-Ping , XIE Qu-Bing , FANG Hai-Ping . SEMI-INCL USIVE DISTRIBUTIONS AND RAPIDITY DEPENDENCE OF MULTIPLICITY DISTRIBUTIONS IN e⁺e^－ ANNIHILATION INTO TWO JETS. Chinese Physics C, 1990, 14(1): 24-30.
[13]	ZHOU Jing-Chen , CAI Xu . BREAK DOWN OF UNIVERSALITY OF KNO SCALED MULTIPLICITY DISTRIBUTIONS IN HIGH ENERGY HADRON-NUCLEUS COLLISIONS AND MULTISOURCE MODEL. Chinese Physics C, 1989, 13(10): 896-899.
[14]	LIU Bo , WANG Ying-Cai . MULTIPLICITY DISTRIBUTIONS OF PRODUCED PARTICLES IN α-α COLLISIONS AT HIGH ENERGIES. Chinese Physics C, 1988, 12(1): 69-74.
[15]	CHEN Zhi-Jiang , XIE Qu-Bing , MA Wen-Jun . THE NEAREST CORRELATION IN RAPIDITY AND THE MULTIPLICITY DISTRIBUTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1988, 12(6): 742-748.
[16]	LIANG Zuo-Tang , XIE Qu-Bing . MULTIPLICITY DISTRIBUTION IN e⁺e^－ ANNIHILATION. Chinese Physics C, 1987, 11(6): 840-843.
[17]	XIE Jia-Lin . ON THE AVERAGE LUMINOSITY OF ELECTRON POSITRON COLLIDER AND POSITRON-PRODUING ENERGY. Chinese Physics C, 1985, 9(5): 577-585.
[18]	LIU Yao-Yang . RADIATIVE DECAY OF Z⁰ AND HEAVY LEPTON. Chinese Physics C, 1985, 9(4): 505-507.
[19]	CHANG CHAO-XI . ON STRUCTURE OF MULTIPARTICLES IN QUARK JETS FOR e⁺e^- COLLIDING. Chinese Physics C, 1982, 6(1): 123-128.
[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

Xie Yigang and Chai Yong. Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^－ Annihilation at Z⁰ Energy Region[J]. Chinese Physics C, 1994, 18(9): 778-787.

Xie Yigang and Chai Yong. Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^－ Annihilation at Z⁰ Energy Region[J]. Chinese Physics C, 1994, 18(9): 778-787. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(1553)
PDF Downloads(494)
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, [email protected]

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^－ Annihilation at Z⁰ Energy Region

Corresponding author: Xie Yigang,

Institute of High Energy Physics, Academia Sinica, Beijing 100039

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1994-09-05

Abstract: The charged multiplicity distributions of hadron final states in the e⁺e^－ annihilation at the 91.2 GeV Z⁰ energy region are fitted with Poisson shape in different rapidity windows for double and single hemisphere. The multiplicities which are in Poisson-like shapes can be got according to the parameter /D and fitting qualities are compared with the results derived from the relevant theoretical models.The relationship between the Poisson-like shape and KNO scaling is discussed. The connection between the parameters expressing the deviation from the Poisson shape and non-independent particle emission and multiplicity correlation strength is analyzed. The "shoulder structure" is observed in the central rapidity region and analyzed with multi-jets by using the JADE jet analysis algorithm.

HTML

Reference (1)

Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^－ Annihilation at Z⁰ Energy Region

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, [email protected]

Email This Article

Poisson-Like Shape and Shoulder Structure of Hadron Multiplicity Distributions in e⁺e^－ Annihilation at Z⁰ Energy Region

Corresponding author: Xie Yigang,

HTML

目录