Chinese Physics C > 2001, Vol. 25 > Issue(8): 710-719

Hadron Multiplicities and Its Momentum Spectra from Color Separate Connection among Final Partons in e⁺e^－Annihilation Events

SHAO Feng-Lan^,,
XIE Qu-Bing

Physics Department,Shandong University,Jinan 250100,China

Abstract
HTML
Reference
Related

PDF

Abstract：
We calculate the hadron multiplicities and the momentum spectra of π ^±,K ^±,p/p in e ⁺e ^－→q+ng→hadrons for the case where the color separate singlet connections occur among the final partons q+ng with the help of JETSET event generator. We compare the results with those obtainted from the traditional color flow models and the available experimental data. The comparisons show that the momentum spectra obtained in the case of C-weight have a singnificant deviation from the data.,whereas those obtained in the case of T-weight are consistant with the data. The results from the case of T-weight are also consistant with those from the color flow model in most cases,and for proton, are even better than the later as implemented in default JETSET compared with the data.

References

[1]

. Sjostrand T .int.J.Mod .Phys.,1 988,A3:751 ;Z Physics at LEP1 ,CERN Report CERN89–0 9,3:1432. WANG Qun,XIE Qu-Bing .High Energy Phys.and Nucl.Phys.,1995,19:1100(in Chinese)(王群、谢去病.高能物理与核物理,1995,19:1100)3. Friberg C ,Gustafson G ,Hakkinen J.Nucl.Phys.,1997,B490:2894. Wang Qun ,Gustafson G ,Xie Qu-Bing .Phys.Rev .,2000,D62:054004 5. Knowles I G ,Lafferty G D .Journal of Phys.Nuclear and Particle Phys.,1997,G23:731 6. Andersson B,Gustafson G ,Soderberg B .Nucl.Phys.,1986,B264:297. Particle Data Group.Eur.Phys.J.2000 ,C15:226 8. ARGUS,Albrecht H et al.Z.Phys.,1989,C44:547 9. TPC,Aihara H et al.Phys.Rev.Lett.,1988,61:1263 10. ALEPH,D.Buskulic et al.Z.Phys.,1995,C66:355 11. DELPHI,Abreu P et al.Eur.Phys.J.,1998,C5:585 12. OPAL,Akers R et al.Z .Phys.,1994,C63:18113. SLD,Abe K et al.Phys.Rev.,1 999,D59:052001

[1]	LI Yuan,SHAO Feng-Lan. Decay Contributions to Hyperon Polarization in High Energy Reactions. Chinese Physics C, 2007, 31(9): 810-814.
[2]	LIU Xi-Ming,WANG Yong-Gang,ZHANG Xue-Yao. Hadrons Production from Light Quark Jets in e^＋e^－Annihilation. Chinese Physics C, 2004, 28(1): 11-16.
[3]	WANG Ping,YUAN Chang-Zheng,MO Xiao-Hu. Contribution of One-Photon Annihilation at ψ(2S) in e⁺e^－Experiment. Chinese Physics C, 2003, 27(6): 465-473.
[4]	JIN Yi,XIE Qu-Bing,LI Shi-Yuan. Influence of Interference Terms on Probability of Color Connections among Partons in e⁺e^－→qq+ng Process. Chinese Physics C, 2003, 27(4): 282-287.
[5]	JIA Qing-Ying,BAN Yong,JI Xiao-Bin,ZOU Bing-Song. Effects of Simulation and Detection of Low-Momentum Final State Particles on the Research of Baryon Spectroscopy. Chinese Physics C, 2003, 27(12): 1053-1057.
[6]	SHAO Feng-Lan,XIE Qu-Bing. Ratio of Baryon to Meson and Baryon Antibaryon Correlation in e⁺e^－Annihilation under Two Kinds of Color Connections. Chinese Physics C, 2002, 26(8): 779-785.
[7]	SHAO Feng-Lan,XIE Qu-Bing,LI Shi-Yuan. Study of Colour Connections via Two-Jet Like Events in e⁺e^－Annihilation. Chinese Physics C, 2002, 26(11): 1103-1109.
[8]	LIU Xi-Ming,ZHANG Xue-Rao,WANG Hai-Long. Universal Mass Dependence of Final Hadron Yields in High Energy Reactions. Chinese Physics C, 2001, 25(5): 377-382.
[9]	Si Zongguo,Xie Qubing,Wang Qun. Color Rearrangement in e⁺e^－→W⁺W^－→h's Process. Chinese Physics C, 1998, 22(4): 307-314.
[10]	BES Collaboration. Abnormal Suppression of Vector-Tensor Decays of ψ(2S). Chinese Physics C, 1997, 21(1): 89-96.
[11]	Liu Bo,Zhao Weiqin. Contribution Due to Gluon Shadowing and Final-State Interactions to Charmonium/Bottonium Suppression in h-A Collisions. Chinese Physics C, 1994, 18(5): 443-447.
[12]	Liu Ximing. The Final State Multiplicity Rates of η and η＇IN e⁺e^－Annihilation at High Energy. Chinese Physics C, 1994, 18(12): 1091-1095.
[13]	LIU Bo. Enhancement of K⁺/π⁺Ratio in High-Energy Proton-Nucleus and Nucleus-Nucleus Collisions Due to the Secondary Collisions. Chinese Physics C, 1993, 17(5): 455-461.
[14]	TIAN Li-Li,XIE Qu-Bing,SI Zong-Guo. The Structures of Colour String for e⁺e^－→qqg and γ→3g. Chinese Physics C, 1993, 17(8): 717-724.
[15]	LIU Xi-Ming. BARYON PRODUCTION IN e⁺e^－ANNIHILATION. Chinese Physics C, 1989, 13(9): 803-807.
[16]	FANG Hai-Ping,XIE Qu-Bing,LAI Xiao-Ping. RAPIDITY DISTRIBUTION AND BARYON-ANTIBARYON CORRELATIONS IN e⁺e^－→TWO JET EVENTS. Chinese Physics C, 1989, 13(6): 518-525.
[17]	QIU Zhong-Ping,CAI Xu. CYLINDRICAL BAG MODEL OF PARTICLE PRODUCTION IN HIGH ENERGY e⁺e^－ANNIHILATION. Chinese Physics C, 1988, 12(5): 708-711.
[18]	WANG Zheng-Zhi,WANG Gui-Yun. e⁺e^－ANNIHILATION AND THE LARGE TRANSVERSE MOMENTUM P_⊥DISTRIBUTION. Chinese Physics C, 1987, 11(2): 164-166.
[19]	XIE Qu-Bing,LIU Xi-Ming. THE YIELDS OF FINAL PARTICLES IN HIGH ENERGY HADRON REACTION. Chinese Physics C, 1987, 11(4): 476-482.
[20]	CHANG CHAO-XI. ON STRUCTURE OF MULTIPARTICLES IN QUARK JETS FOR e⁺e^-COLLIDING. Chinese Physics C, 1982, 6(1): 123-128.

Access

Get Citation

SHAO Feng-Lan and XIE Qu-Bing. Hadron Multiplicities and Its Momentum Spectra from Color Separate Connection among Final Partons in e ⁺e ^－Annihilation Events[J]. Chinese Physics C, 2001, 25(8): 710-719.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2000-11-20
Revised: 1900-01-01

Article Metric

Article Views(3802)
PDF Downloads(586)
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

Hadron Multiplicities and Its Momentum Spectra from Color Separate Connection among Final Partons in e⁺e^－Annihilation Events

SHAO Feng-Lan^,
XIE Qu-Bing

Corresponding author:SHAO Feng-Lan,

Physics Department,Shandong University,Jinan 250100,China

Received Date:2000-11-20
Accepted Date:1900-01-01
Available Online:2001-08-05

Abstract:We calculate the hadron multiplicities and the momentum spectra of π^±,K^±,p/p in e⁺e^－→q+ng→hadrons for the case where the color separate singlet connections occur among the final partons q+ng with the help of JETSET event generator. We compare the results with those obtainted from the traditional color flow models and the available experimental data. The comparisons show that the momentum spectra obtained in the case of C-weight have a singnificant deviation from the data.,whereas those obtained in the case of T-weight are consistant with the data. The results from the case of T-weight are also consistant with those from the color flow model in most cases,and for proton, are even better than the later as implemented in default JETSET compared with the data.