A Generator of QCD Parton Model for the Study of Cosmic Ray Ultrahigh Energy Interactions

  • A parton model based on perturbative QCD is developed for the description of ultrahigh energy interaction between cosmic rays and air nuclei.A LLA QCD calculation of jet production cross sections in proton-proton scattering and a hadronization scheme based on independent fragmentation model are presented.A number of parameters in the hadronization scheme are so selected 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 in the C.M.energy region from 60 GeV to 1800 GeV and to extrapolate smoothly to ultrahigh energy region extending to 22 TeV.
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Cao Zhen and Ding Linkai. A Generator of QCD Parton Model for the Study of Cosmic Ray Ultrahigh Energy Interactions[J]. Chinese Physics C, 1994, 18(11): 961-969.
Cao Zhen and Ding Linkai. A Generator of QCD Parton Model for the Study of Cosmic Ray Ultrahigh Energy Interactions[J]. Chinese Physics C, 1994, 18(11): 961-969. shu
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Received: 1900-01-01
Revised: 1900-01-01
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A Generator of QCD Parton Model for the Study of Cosmic Ray Ultrahigh Energy Interactions

    Corresponding author: Cao Zhen,
  • Institute of High Energy Physics,Academia Sinica,Beijing,100039

Abstract: A parton model based on perturbative QCD is developed for the description of ultrahigh energy interaction between cosmic rays and air nuclei.A LLA QCD calculation of jet production cross sections in proton-proton scattering and a hadronization scheme based on independent fragmentation model are presented.A number of parameters in the hadronization scheme are so selected 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 in the C.M.energy region from 60 GeV to 1800 GeV and to extrapolate smoothly to ultrahigh energy region extending to 22 TeV.

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