Generator of QCD Parton Model for the Cosmic Ray Ultrahigh Energy Interaction

Cao Zhen; Ding Linkai

Chinese Physics C> 1994, Vol. 18> Issue(S4) : 321-332

Generator of QCD Parton Model for the Cosmic Ray Ultrahigh Energy Interaction

Cao Zhen ,
Ding Linkai

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing

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Abstract：
A parton model based on perturbative QCD is developed for the description of ultrahigh energy interaction between cosmic ray and air nuclei. A LLA QCD calculation of jet production cross section in proton-proton scattering and a hadronization scheme based on independent fragmentation model are presented. A number of parameters in the hadronization scheme are selected such that the basic features of hadronic production in e⁺e^- collision covering C.M. energy region from 14 GeV to 91 GeV can be reproduced. A Monte Carlo generator is constructed to reproduce the basic characteristics of proton-antiproton scattering at the C.M. energy from 80 GeV to 1800 GeV and extended to ultrahigh energy region up to 22 TeV.
- ultrahigh energy interaction ,
- QCD parton model ,
- transverse momentum ,
- pseudorapidity ,
- hadronization ,
- e⁺e^- collision ,
- p-scattering')">pp-scattering ,
- jet
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Cao Zhen and Ding Linkai. Generator of QCD Parton Model for the Cosmic Ray Ultrahigh Energy Interaction[J]. Chinese Physics C, 1994, 18(S4): 321-332.

Cao Zhen and Ding Linkai. Generator of QCD Parton Model for the Cosmic Ray Ultrahigh Energy Interaction[J]. Chinese Physics C, 1994, 18(S4): 321-332. shu

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Received: 1993-08-02

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沈阳化工大学材料科学与工程学院沈阳 110142

Generator of QCD Parton Model for the Cosmic Ray Ultrahigh Energy Interaction

Cao Zhen
Ding Linkai

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing

Received Date: 1993-08-02

Abstract: A parton model based on perturbative QCD is developed for the description of ultrahigh energy interaction between cosmic ray and air nuclei. A LLA QCD calculation of jet production cross section in proton-proton scattering and a hadronization scheme based on independent fragmentation model are presented. A number of parameters in the hadronization scheme are selected such that the basic features of hadronic production in e⁺e^- collision covering C.M. energy region from 14 GeV to 91 GeV can be reproduced. A Monte Carlo generator is constructed to reproduce the basic characteristics of proton-antiproton scattering at the C.M. energy from 80 GeV to 1800 GeV and extended to ultrahigh energy region up to 22 TeV.