Color Singlet Set of Multiparton System qq+ng

Wang Qun; Xie Qubing

Chinese Physics C> 1995, Vol. 19> Issue(12) : 1100-1107

Color Singlet Set of Multiparton System qq+ng

Wang Qun ^, ,
Xie Qubing

Physics Department, Shandong University, Jinan 250100

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Abstract：
Color singlet set and color string configuration among partons for multiparton system are analyzed from exact SU_c(3). The probability for singlet string, which corresponds to color dipole in Lund CD model, is found to decrease rapidly as the number of gluons increases, while for those singlet clusters whose color structure are similar to glueballs, their probability grows rather fast and is independent of strong coupling constant. This phenomenon is thought to be a kind of collective effect.

References

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T.Sjostrand,Inter.J.Mod.Phys,A3（1988）751;in Z Physics at LEP1,CERN Report CERN 89-08,Vol.Ⅲ，p.143;G.Gustafson,Phys.Lett,B175（1986）453;G.Gustafson,U.Pettersson,Nucl.Phys.,B306（1988）746.[2] 王群、谢去病，高能物理与核物理，19（1995）791.[3] Lin Tian,Qubing Xie,Zongguo Si,Phys,Rev,D49（1994）4517.[4] G.Gustafson,Z.Phys,C15（1982）155.[5] Chao Weiqin et al,Phys.Rev,D41（1990）838;Chongshou Gao,Jicai Pan,Z.Phys,C55（1992）441.

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Wang Qun and Xie Qubing. Color Singlet Set of Multiparton System qq+ng[J]. Chinese Physics C, 1995, 19(12): 1100-1107.

Wang Qun and Xie Qubing. Color Singlet Set of Multiparton System qq+ng[J]. Chinese Physics C, 1995, 19(12): 1100-1107. shu

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

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