On the Origin of the Negative Correlation Effect of Colour Reconnection

YU MeiLing; LIU LianShou

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2000, Vol. 24> Issue(3) : 275-278

On the Origin of the Negative Correlation Effect of Colour Reconnection

YU MeiLing ^, ,
LIU LianShou

Institnd of particle Physics, Huazhong Normal University, Wuhan 430079, China

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Abstract：
The negative correlation in W⁺W^－ hadronic decay, which has recently been proposed as a possible signal for the colour reconnection in these proceses, is studied in some detail by using the random cascadingα-model. The effect of colour reconnection is modeled by the particle exchange between two final state systems forming from two W's. The negative correlation given by Pythia event generator is recovered in this way, providing a physical picture for this effect.

References

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Gustafson G, Pettersson U, Zerwas P M. Phys. bet.,1988,B209:902 Siostrrand T, Khoze V A. Z. Phys.,1994,C62:281 3 Kittel W. QCD and High Energy Hadronic Interactions, Invited Talk at the 34 the Redcintre de Moriond,Mar. 1999 4 OPAL Collaboration,Colour Reconnerction Studies in e+ e– →W+W- at √s=183GeV, Preprint CERN–EP/98 –196 5 FU JingHua,LIU LianShou. Identification of Colour Reconnection Using Factorial Correlator,Preprint Hzpp 9907, hep–ph/9907536 6 Bialas A, Peschanski R. Nucl. Phys.,1986,B273:703; Nucl. Phys.,1988, 308:857 7 WU YuanFang,Zhang KunShi, LIU LianShou. Chinese Sciance Bulletin, 1991, 36: 1077

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YU MeiLing and LIU LianShou. On the Origin of the Negative Correlation Effect of Colour Reconnection[J]. Chinese Physics C, 2000, 24(3): 275-278.

YU MeiLing and LIU LianShou. On the Origin of the Negative Correlation Effect of Colour Reconnection[J]. Chinese Physics C, 2000, 24(3): 275-278. 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

On the Origin of the Negative Correlation Effect of Colour Reconnection

YU MeiLing ^,
LIU LianShou

Corresponding author: YU MeiLing,

Institnd of particle Physics, Huazhong Normal University, Wuhan 430079, China

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 2000-03-05

Abstract: The negative correlation in W⁺W^－ hadronic decay, which has recently been proposed as a possible signal for the colour reconnection in these proceses, is studied in some detail by using the random cascadingα-model. The effect of colour reconnection is modeled by the particle exchange between two final state systems forming from two W's. The negative correlation given by Pythia event generator is recovered in this way, providing a physical picture for this effect.