Diffractive ψ Production through Double Gluon Exchange Model in π and p Collision

YAN Zhan-Yuan; DUAN Chun-Gui; LI Guang-Lie

Chinese Physics C> 2003, Vol. 27> Issue(5) : 377-380

Diffractive ψ Production through Double Gluon Exchange Model in π and p Collision

Department of Applied Physics, North China Electric Power University, Baoding 071003, China2 Department of Physics, Hebei Normal University, Shijiazhuang 050016, China3 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China4 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelebrator of Lanzhou, Lanzhou 730000, China

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Abstract：
Using double gluon exchange model and the heavy quarkonuim color octet production mechanism, the diffractive cross sections of ψ in the π a p collision process are calculated and discussed. The results show that the diffractive total cross section of ψ increases with the increasing center of mass energy. Furthermore, the discrepancy of the total cross section calculated with different gluon distribution functions also increases with the increasing center of mass energy. Comparing the calculated results with the future experiment data, the gluon distribution function of π and double gluon exchange model could be examined.

References

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YAN Zhan-Yuan, DUAN Chun-Gui and LI Guang-Lie. Diffractive ψ Production through Double Gluon Exchange Model in π and p Collision[J]. Chinese Physics C, 2003, 27(5): 377-380.

YAN Zhan-Yuan, DUAN Chun-Gui and LI Guang-Lie. Diffractive ψ Production through Double Gluon Exchange Model in π and p Collision[J]. Chinese Physics C, 2003, 27(5): 377-380. shu

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Received: 2002-08-12
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

Diffractive ψ Production through Double Gluon Exchange Model in π and p Collision

Corresponding author: YAN Zhan-Yuan,

Department of Applied Physics, North China Electric Power University, Baoding 071003, China2 Department of Physics, Hebei Normal University, Shijiazhuang 050016, China3 Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China4 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelebrator of Lanzhou, Lanzhou 730000, China

Received Date: 2002-08-12
Accepted Date: 1900-01-01
Available Online: 2003-05-05

Abstract: Using double gluon exchange model and the heavy quarkonuim color octet production mechanism, the diffractive cross sections of ψ in the π a p collision process are calculated and discussed. The results show that the diffractive total cross section of ψ increases with the increasing center of mass energy. Furthermore, the discrepancy of the total cross section calculated with different gluon distribution functions also increases with the increasing center of mass energy. Comparing the calculated results with the future experiment data, the gluon distribution function of π and double gluon exchange model could be examined.