Hard Diffractive Production of Heavy Flavors in High Energy p+p(<span style="border-top: 1px solid; padding-top: 0px;">p</span>) Collisions

Peng Hongan; Qin Kecheng; He Zhenmin

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2024年10月30日

Chinese Physics C> 1995, Vol. 19> Issue(S1) : 31-38

Hard Diffractive Production of Heavy Flavors in High Energy p+p(p) Collisions

1 Department of Physics, Peking University, Beijing, China;
2 Department of Physics, Hebei Normal University, Shijiazhuang Hebei, China

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Abstract：
The p+p(p)→p+J/ψ(γ)+X processes for energies ranging from ISR to SSC are discussed. Assuming that the structure of the Pomeron (P) is dominated by gluons with behavior of l/x at small x, the cross section for the above hard diffractive processes taking into account two main sub-diagrams and the cross section for "background" Drell-Yan processes are calculated in the lowest order of QCD. In contrast to the background cross section, which increases with InS, the diffractive hard cross section increases with (InS)², hence the latter would be far larger than the former at TeV energies. It is shown that this property is universal for other hard diffractive processes. This would provide a new method for detecting physical particles at super-high energies by choosing suitable hard diffractive processed, provided that our above assumption of the Pomeron is correct.
- hard diffractive scattering processes ,
- the Pomeron ,
- gluon distributions

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Peng Hongan, Qin Kecheng and He Zhenmin. Hard Diffractive Production of Heavy Flavors in High Energy p+p(p) Collisions[J]. Chinese Physics C, 1995, 19(S1): 31-38.

Peng Hongan, Qin Kecheng and He Zhenmin. Hard Diffractive Production of Heavy Flavors in High Energy p+p(p) Collisions[J]. Chinese Physics C, 1995, 19(S1): 31-38. shu

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Received: 1993-09-21

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Supported by the National Natural Science Foundation of China Doctoral Foundation of National Education Committee of China, and Natural Science Foundation of Hebei Province.

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Hard Diffractive Production of Heavy Flavors in High Energy p+p(p) Collisions

1 Department of Physics, Peking University, Beijing, China;
2 Department of Physics, Hebei Normal University, Shijiazhuang Hebei, China

Received Date: 1993-09-21

Fund Project: Supported by the National Natural Science Foundation of China Doctoral Foundation of National Education Committee of China, and Natural Science Foundation of Hebei Province.

Abstract: The p+p(p)→p+J/ψ(γ)+X processes for energies ranging from ISR to SSC are discussed. Assuming that the structure of the Pomeron (P) is dominated by gluons with behavior of l/x at small x, the cross section for the above hard diffractive processes taking into account two main sub-diagrams and the cross section for "background" Drell-Yan processes are calculated in the lowest order of QCD. In contrast to the background cross section, which increases with InS, the diffractive hard cross section increases with (InS)², hence the latter would be far larger than the former at TeV energies. It is shown that this property is universal for other hard diffractive processes. This would provide a new method for detecting physical particles at super-high energies by choosing suitable hard diffractive processed, provided that our above assumption of the Pomeron is correct.