Physics of Atomic Nuclei

, Volume 66, Issue 3, pp 565–574

Total cross section for photon-nucleon interaction in the energy range \(\sqrt \mathcal{S} = 40 - 250 GeV\)

  • G. M. Vereshkov
  • O. D. Lalakulich
  • Yu. F. Novoseltsev
  • R. V. Novoseltseva
Elementary Particles and Fields Experiment

Abstract

Results obtained by directly measuring the total cross section for photon-nucleon interaction through recording photoproduction processes at the Baksan underground scintillation telescope of the Institute for Nuclear Research (Russian Academy of Sciences, Moscow) are presented. The effect of a faster growth of photon-hadron cross sections in relation to hadron-hadron cross sections is confirmed in the energy range \(\sqrt \mathcal{S} = 40 - 130 GeV\). It is shown that an increase in the number of additive quarks in photon-hadronization products may be one of the reasons behind this effect. Experimental data on the cross sections for photon-nucleon and photon-photon interactions are subjected to a comparative analysis, and the status of the results obtained from direct and indirect cross-section measurements in the high-energy region is discussed.

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Copyright information

© MAIK "Nauka/Interperiodica" 2003

Authors and Affiliations

  • G. M. Vereshkov
    • 1
    • 2
  • O. D. Lalakulich
    • 3
    • 2
  • Yu. F. Novoseltsev
    • 3
  • R. V. Novoseltseva
    • 3
  1. 1.Institute for Nuclear ResearchRussian Academy of SciencesMoscowRussia
  2. 2.Institute of PhysicsRostov State UniversityRostov-on-DonRussia
  3. 3.Institute for Nuclear ResearchRussian Academy of SciencesMoscowRussia

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