Elsevier

Nuclear Physics

Volume 14, Issue 3, 1 January 1960, Pages 522-539
Nuclear Physics

Mechanism of interaction of fast protons with nucleons and nuclei

https://doi.org/10.1016/0029-5582(60)90471-5Get rights and content

Abstract

Angular and energy characteristics of interaction between 9 GeV protons and emulsion nuclei, as well as the production of strange particles have been investigated. The obtained experimental results reveal a better agreement with the cascade mechanism of nucleon-nucleus interaction than with the nucleon-tube model.

The average energy loss in a single nucleon-nucleon collision is estimated to be (40±10) %. The size of a nucleon core is discussed. Through the optical analysis of nucleon-nucleon interactions the value rc≈0.6×10−13 cm is obtained for the size of the nucleon core, while the fraction of peripheral collisions constitutes ≈20%. Angular and energy distributions of slow K+ and π± mesons have also been obtained. The production cross-section for K+ mesons with energy up to 140 MeV on an average emulsion nucleus is σ = 5±2 mb.

References (22)

  • V. S. Barashenkov and Huan Nian Nin, JETP (in...
  • D.I. Blokhintsev et al.

    Nuovo Cimento

    (1958)
    V.G. Grishin

    JETP

    (1958)
  • N.P. Bogachov

    Atom. Energ.

    (1958)
    W.R. Johnson

    Phys. Rev.

    (1955)
  • V. Beliakov
  • E.L. Feinber

    JETP

    (1955)
    E.L. Feinber

    Usp. Fiz. Nauk

    (1956)
  • I.A. Ivanovskaya et al.

    Nuclear Physics

    (1957)
  • E.L. Grigoriev et al.

    JETP

    (1956)
  • V.S. Barashenkov et al.

    Nuovo Cimento

    (1958)
  • W.O. Zock et al.
  • N.L. Grigorov

    Usp. Fiz. Nauk

    (1956)
  • W.D. Walker et al.

    Phys. Rev.

    (1955)
    J.E. Crew et al.

    Phys. Rev.

    (1958)
    M. Blan et al.

    Phys. Rev.

    (1956)
  • Cited by (24)

    • Multifractality in relativistic charged particles produced at SPS energies

      2016, Chaos, Solitons and Fractals
      Citation Excerpt :

      The measuring system associated with it has 1 μm resolution along X and Y axes and 0.5 μm resolution along the Z-axis. The tracks associated with the interactions are classified in accordance with their ionization, range and velocity [12,13]. The tracks having specific ionization g*(=g/go) < 1.4 and relative velocity β > 0.7 are taken as shower tracks, where go is the Fowler and Perkins parameter for plateau ionization of relativistic particles.

    • Multifractal study and multifractal specific heat of singly charged particles produced in <sup>32</sup>S-Em interactions at 200 AGeV

      2015, Chaos, Solitons and Fractals
      Citation Excerpt :

      There is a limitation with nuclear emulsion that the exact identification of target is not possible since the medium of the emulsion is heterogeneous and composed of H, C, N, O, Ag and Br nuclei. The events produced due to the collisions with different targets in nuclear emulsion are usually classified into three main categories on the basis of the multiplicity of heavily ionising tracks in it [21,22]. In the present work we have categorised the events on the bases of Nh multiplicity as follows: the events with Nh in range 2 ≤ Nh ≤ 7 are classified as collision with group of light nuclei (CNO, 〈AT〉 = 14) and Nh ≥ 8 are classified as collision with group of heavy nuclei (AgBr, 〈AT〉 = 94).

    View all citing articles on Scopus
    View full text