Description of LUND Area Law to J/ψ Non-perturbative Hadronic Decay

HU Hai-Ming; DAI Yu-Mei; MA Feng-Cai

Chinese Physics C> 2003, Vol. 27> Issue(8) : 673-677

Description of LUND Area Law to J/ψ Non-perturbative Hadronic Decay

Institute of High Energy Physics, CAS, Beijing 100039, China2 Department of Physics, Liaoning University, Shenyang 110036,China

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Abstract：
Based on the perturbative QCD predictions of gluonic distributions and branch cross section of the J/ψ decay via hadronic, electromagnetic,and radiative channels, the strict solutions of LUND area law of string fragmentation had-ronization are used to treat nonperturbative hadronic production processes, a possible description and Monte Carlo packet for the J/ψ hadronic decay are obtained. The more than 14 spectra and event shapes of the charged particles simulated by Monte Carlo generator LUARLW agree with BES data well.

References

[1]

. Andersson B. The Lund Model, Cambridge University Press, Cambridge, 19882. Andersson B,HU H M.hep–ph/99102853. HU Hai–Ming et al. High Energy Phys. and Nucl. Phys., 2001, 25:1035–1043 (in Chinese)(胡海明等.高能物理与核物理,2001,25:1035–1043)4. BAI Jing–Zhi et al. Phys. Rev. Lett. ,2002, 88:1018025. Koller K et al. Nuclear Physics,1984, B140:449–4676. Sjostrand T. PYTHIA5.7 and JETSET7.4 Physics and Manual, CERN– TH. 7112/937. Girone M, Neubert M. Phys. Rev. Lett. 1996,76:30618. ZHENG Zhi–Peng,ZHU Yong–Sheng. Electron–Positron Physics at Beijing Spectrometer. Guangxi: Guangxi Science and Technology Press,1998 (in Chinese)(郑志鹏,朱永生.北京谱议正负电子物理,广西科学技术出版社,1998)9. HU Hai–Ming et al. High Energy Phys. and Nucl. Phys., 2001,25: 701–709(in Chinese)(胡海明等.高能物理与核物理,2001,25:701–709)

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HU Hai-Ming, DAI Yu-Mei and MA Feng-Cai. Description of LUND Area Law to J/ψ Non-perturbative Hadronic Decay[J]. Chinese Physics C, 2003, 27(8): 673-677.

HU Hai-Ming, DAI Yu-Mei and MA Feng-Cai. Description of LUND Area Law to J/ψ Non-perturbative Hadronic Decay[J]. Chinese Physics C, 2003, 27(8): 673-677. shu

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Received: 2002-08-02
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

Description of LUND Area Law to J/ψ Non-perturbative Hadronic Decay

Corresponding author: HU Hai-Ming,

Institute of High Energy Physics, CAS, Beijing 100039, China2 Department of Physics, Liaoning University, Shenyang 110036,China

Received Date: 2002-08-02
Accepted Date: 1900-01-01
Available Online: 2003-08-05

Abstract: Based on the perturbative QCD predictions of gluonic distributions and branch cross section of the J/ψ decay via hadronic, electromagnetic,and radiative channels, the strict solutions of LUND area law of string fragmentation had-ronization are used to treat nonperturbative hadronic production processes, a possible description and Monte Carlo packet for the J/ψ hadronic decay are obtained. The more than 14 spectra and event shapes of the charged particles simulated by Monte Carlo generator LUARLW agree with BES data well.