Gluon Fragmentation in Υ Decay

  • Up to now,no model can reproduce the baryon rates measured by ARGUS collaboration in direct Υ decays,except a qualitative explanation given by Lund model.Instead of the string fragmentation model in Lund picture,we apply the quark production rule and combination rule for qq fragmentation to the colour string for Υ→3g.The results agree well with ARGUS data without extra parameter.
  • 加载中
  • [1] T. Sjostrand,lnt. J. Mod. Phys. ,A3(1989).751.[2]W. Hofmann,Ann. Rev. Nucl. Part. Sci. ,38(1988),279.[3]B. Andersson et al. ,Phys. Scripta,32(1985),574.[4]H. Scheck, Nucl. Phys. B( proc. Suppl. ) ;1B(1988) , 291. D. Wegener,in proceedings of International Symposium on Multiparticle Dynamics ,eds. Wu Yuanfang and Liu Lianshou(World Scientific.Singapore 1992),P. 107.[5]田丽丽等,高能物理与核物理,17(1993),第8期.[6]Xie Qubing ,Liu Ximing,Phys. Rev. ,D38(1988),2169.[7]李政道:《粒子物理和场论简引》,科学出版杜,1984,P.267;或章乃森编著《粒子物理学》上,科学出版社,1986,P.124.[8]A.Ore,].L.Powell,Phys.Rew.,74(1949),1696.[9]Herald Fritzsh et al. ,Phys. Lett. B74(1978),907;S. T. Brodsky et al. ,Phys. Lett. B73(1978),203.[10]谢去病等,《高能物理与核物理》,8(1984),642.或Xie Qubing, Proc. of XIX International Symposium on Multiparticle Dynamaca,eds. D. Schiff and J. Tran Thnnh Van (World Scientific,1988).P.369.[11]Chen Zhijiang et al. ,J.Phys.G,Nucl:Phys. ,14(1988),1339.[12]谢去病,高能物理与核物理,16(1992),22. Xie Qubing,Proc. of XIX International Symposium on Multiparticle Dynamics,eds. Wu Yuanfang and Liu Lian-shou(World Scientific,Singapore 1992),P340.[13]H. Albrecht et al. , (ARGUS) ,Z.Phys.,C39(1988),177.[14]H.Albrecht et al. ,(ARGUS),Z. phys. ,C41(1989),557;G44(1989),547;C46(1990),15.[15]Liang Zuotang,Xie Qubing,Phys. Rev. ,D43(1991),751.
  • 加载中

Get Citation
TIAN Li-Li and XIE Qu-Bing. Gluon Fragmentation in Υ Decay[J]. Chinese Physics C, 1993, 17(10): 885-891.
TIAN Li-Li and XIE Qu-Bing. Gluon Fragmentation in Υ Decay[J]. Chinese Physics C, 1993, 17(10): 885-891. shu
Milestone
Received: 1900-01-01
Revised: 1900-01-01
Article Metric

Article Views(2152)
PDF Downloads(432)
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:

Gluon Fragmentation in Υ Decay

    Corresponding author: TIAN Li-Li,
  • Department of Physics,Ji'nan Univercity,250002Department of Physics,Sandong Univercity,250100

Abstract: Up to now,no model can reproduce the baryon rates measured by ARGUS collaboration in direct Υ decays,except a qualitative explanation given by Lund model.Instead of the string fragmentation model in Lund picture,we apply the quark production rule and combination rule for qq fragmentation to the colour string for Υ→3g.The results agree well with ARGUS data without extra parameter.

    HTML

Reference (1)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return