Studying e+e→h′s Process by Event Generator of Quark Combination Model

  • The event generator of quark combination model is obtained by replacing LUND string fragmentation model in JETSET7.3. Then this generator is applied to study the e+e→h′s process. Using much less adjustable parameters than other models. It is found that quark combination model can reproduce a lot of data, such as the average hadron mulhplicities, the difference &bl betWeen b-quark and light-quark events, the baryon to meson ratios, the event shape distributions and the baryon antibaryon correlations, etc. The reason for some of its predictions deviated from data is discussed. Moreover, it is found that quark combination model can give more direct understanding for some phenomena, eg., the baryon to meson ratios and the baryon antibaryon correlations, etc.
  • 加载中
  • [1] TASSO Collab, Althoff M Ct al. Z PhyS.3 1983, C17:52 Sjstrand T. Inter J. of Mod. Phys, 1988, A3:7513 Mdttig P Phys. Rep., 1989, 177: 141 4 Angelis A de. J Phys.,1993, G19 1233 5 TPC Collab, Aihera H et al. Phys. Rev Lett.3 1985, 55: 1047 6 ARGUS Collab, Albtecht H et al. Z. Phys.3 1989, C43:45 7 OPAL Collab, Acton P D et al. Phys. Lett.f 1993, B305:4158 Xie Qubing, Liu Ximing, Phys. Rev, 1988, D38:21699 Liang Zuotang, Xie Qubing, Phys. Rev、 1991, D43:751 10 Xie pobing, In Proceedings of the XIXth International Syposium on Mulhparticle Dynamics 1988, In: Schiff, D, Tran Thanh Van J ed. Singapore: World Scientific 1988 369 11 Wap Qun, Xie Qubing, Si Zong guo Inter J Mod. Phys, 1996, A11:5203 12 Lai Xianping,Xie Qubing,Fang HaiPing,High Ener.Phys.Nucl.Phys,1990,14:19;Liu Ximing,High Ener Phys、 and NuCL Phys.(in Chinese), 1989, 13:801; Chen Esheflg, Xie Qubing, High Ener. Phys and NucL PhyS., 1990, 14:155 (刘希明.高能物理与核物理.1989,13:801) 13 Si Zongguo,Xie Qubing,Wang Qun.Commun.Theor.Phys,1997,28:85 14 Gustafson G Phys. Lett.f 1986, B175:452; Gustafsoll G. Petterson U. Nucl. Phys.3 1988, B306:604 15 Lonnblad L Comput Phys. Commun. 1992, 71:15 16 Dekshitzer Yu L, MullerA R Troyan S I. Basics of Perturbative QCD. In:Tran Thanh Van J. ed. Cif–sur–YVette: Edihons Fronheres, 1991 17 Wany QUn, Xie Qubins,J Phss, 1995, G21:89718 Bamett R M et al. Phys. Rev.t 1996 D54:1 19 Abe K Ct al. PhyS. ReV tett.f 1994, 72:3145; DEPHI COllab, AbtellP Ct al. PhyS. Lett. 1995, B347:447 20 ALEPH Collab, BtokuliC D et al. Z. Phys.. 1995, C66:355 21 DEPHI Collab, Abtreu P et al. Z. Phys.9 1996, C73 11 22 OPAL Collab, Acton P D et al. Phys. bett, 1992, B291:503 23 JADE Collab, BartelW et al. Phys. Intt 1981; B104 325; TASSO Collab, Althoff M et al. Z. Phys, 1985,C27:27;TPC Collab,Aihara H et al Phys.Rev Lett., 1984,53:2199;1985,54:274;1985,55:1047; 1986. 57:3140; MARK2 Collab, Vaissiere C de la et al. Phys. ffev bett, 1985, 54:2071; HRS Collab, DeffiCk M Ct al. PhyS. ffeV.f 1987, D35 2639; TASSO COllab, Althoff M et al. PhyS. Dett, 1984, B139: 12624 DEPHI Collab, Abreu P et al. 1997 preprint CERN–PPE/ 97–027
  • 加载中

Get Citation
Si Zongguo and Xie Qubing. Studying e+e→h′s Process by Event Generator of Quark Combination Model[J]. Chinese Physics C, 1999, 23(5): 445-458.
Si Zongguo and Xie Qubing. Studying e+e→h′s Process by Event Generator of Quark Combination Model[J]. Chinese Physics C, 1999, 23(5): 445-458. shu
Milestone
Received: 1998-06-08
Revised: 1900-01-01
Article Metric

Article Views(3510)
PDF Downloads(574)
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

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

Studying e+e→h′s Process by Event Generator of Quark Combination Model

    Corresponding author: Si Zongguo,
  • Department of Physics, Shandong University, Jinan Shandong 2501002 Institute of Particle Physics, Huazhong Normal University, mahan Hubei 430070

Abstract: The event generator of quark combination model is obtained by replacing LUND string fragmentation model in JETSET7.3. Then this generator is applied to study the e+e→h′s process. Using much less adjustable parameters than other models. It is found that quark combination model can reproduce a lot of data, such as the average hadron mulhplicities, the difference &bl betWeen b-quark and light-quark events, the baryon to meson ratios, the event shape distributions and the baryon antibaryon correlations, etc. The reason for some of its predictions deviated from data is discussed. Moreover, it is found that quark combination model can give more direct understanding for some phenomena, eg., the baryon to meson ratios and the baryon antibaryon correlations, etc.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return