Gluon Fragmentation in Υ Decay

TIAN Li-Li; XIE Qu-Bing

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2024年10月30日

Chinese Physics C> 1993, Vol. 17> Issue(10) : 885-891

Gluon Fragmentation in Υ Decay

TIAN Li-Li ^, ,
XIE Qu-Bing

Department of Physics,Ji'nan Univercity,250002Department of Physics,Sandong Univercity,250100

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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.

References

[1]

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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

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

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沈阳化工大学材料科学与工程学院沈阳 110142

Gluon Fragmentation in Υ Decay

TIAN Li-Li ^,
XIE Qu-Bing

Corresponding author: TIAN Li-Li,

Department of Physics,Ji'nan Univercity,250002Department of Physics,Sandong Univercity,250100

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1993-10-05

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.