On the Test of Pomeron Structure (Parton Distribution Functions)

He Zhenmin; Lin Zhongjin; Qin Kecheng; Peng Hongan

Chinese Physics C> 1995, Vol. 19> Issue(4) : 310-319

On the Test of Pomeron Structure (Parton Distribution Functions)

Department of Physics, Hebei Teacher's University, Shijiazhuang 0500162 Department of Physics, Xiamen University, Xiamen 3610053 Department of Physics, Peking University, Beijing 100871

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Abstract：
The contributions of the double Pomeron exchange to the J/ψ production inhigh energy p+p(p) collisions are calculated using different models for parton distribution functions inside the Pomeron(P). For the Ingelman-Schlein model in which gluons dominate in partons, the cross sections in high energy increase smoothly with as In²S or InS. The total cross section σ(S) is about 10²－10³nb in the TeV energies. For the Donnachie-Landshoff model in which the P are considered as something like isoscalar photons with C=+1 the cross section behavior increasing with energy is a little bit complicated. In same energy range, the cross sections are only 1-3nb which are smaller than that of the former case by 2—3 order of magnitude. So, if we assume the parameters of the above models are reliable, then these J/ψ production processes should be a good place for testing these models.

References

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He Zhenmin, Lin Zhongjin, Qin Kecheng and Peng Hongan. On the Test of Pomeron Structure (Parton Distribution Functions)[J]. Chinese Physics C, 1995, 19(4): 310-319.

He Zhenmin, Lin Zhongjin, Qin Kecheng and Peng Hongan. On the Test of Pomeron Structure (Parton Distribution Functions)[J]. Chinese Physics C, 1995, 19(4): 310-319. 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 Test of Pomeron Structure (Parton Distribution Functions)

Corresponding author: He Zhenmin,

Department of Physics, Hebei Teacher's University, Shijiazhuang 0500162 Department of Physics, Xiamen University, Xiamen 3610053 Department of Physics, Peking University, Beijing 100871

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-04-05

Abstract: The contributions of the double Pomeron exchange to the J/ψ production inhigh energy p+p(p) collisions are calculated using different models for parton distribution functions inside the Pomeron(P). For the Ingelman-Schlein model in which gluons dominate in partons, the cross sections in high energy increase smoothly with as In²S or InS. The total cross section σ(S) is about 10²－10³nb in the TeV energies. For the Donnachie-Landshoff model in which the P are considered as something like isoscalar photons with C=+1 the cross section behavior increasing with energy is a little bit complicated. In same energy range, the cross sections are only 1-3nb which are smaller than that of the former case by 2—3 order of magnitude. So, if we assume the parameters of the above models are reliable, then these J/ψ production processes should be a good place for testing these models.