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Central collisions of helium and carbon nuclei with silver and bromine nuclei at a momentum of 4·5 A GeV/c

Bucharest—Dubna—Leningrad—Ulan Bator Collaboration

  • Published:
Czechoslovak Journal of Physics B Aims and scope

Basic conclusions

  1. 1.

    The selection criteria of central nuclear collisions were investigated, and the field of their applicability was given. The impact parameters of two nuclei for selected events are found to be ≲ 3 fm.

  2. 2.

    Events classified as central collision ones are accompanied by the emission of at least one g-particle emitted backward in the laboratory coordinate system.

  3. 3.

    Both the multiplicity of relativistic (s) particles and the number of pions among them are proportional to the mass of projectile nucleus.

  4. 4.

    The sharp increase in s-particle forward collimation with increasing projectile nucleus mass is related to the increase in inelastically scattered protons of this nucleus.

  5. 5.

    The calculations by the cascade-evaporation model for4He(Ag, Br) collisions answer a qualitative character of experimental data behaviour but overestimate the degree of target nucleus desintegration.

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Author information

Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, USSR

    A. Abdelsalam, S. Vokál, K. D. Tolstov, G. S. Shabratova & M. Šumbera

  2. Central Institute of Physics, Bucharest, Romania

    M. Haiduc

  3. Leningrad Polytechnic Institute, Leningrad, USSR

    S. D. Bogdanov & V. I. Ostroumov

  4. Radium Institute, Leningrad, USSR

    V. G. Bogdanov, V. A. Plyushchev & Z. I. Solovieva

  5. Institute of Physics and Technics of the Mongolian Acad. Sci., Ulan Bator, Mongolia

    R. Togoo

  6. P. J. Šafárik University, Jesenná 5, 041 54, Košice, Czechoslovakia

    S. Vokál

  7. Nuclear Physics Institute, 250 68, Řež near Prague, Czechoslovakia

    M. Šumbera

Authors
  1. A. Abdelsalam
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  2. S. Vokál
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  3. K. D. Tolstov
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  4. G. S. Shabratova
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  5. M. Šumbera
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  6. M. Haiduc
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  7. S. D. Bogdanov
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  8. V. I. Ostroumov
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  9. V. G. Bogdanov
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  10. V. A. Plyushchev
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  11. Z. I. Solovieva
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  12. R. Togoo
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Additional information

In conclusion the authors consider it necessary to thank the numbers of the whole photoemulsion collaboration for the experimental material, A. P. Cheplakov for performing multiple scattering model calculations, Zh. Zh. Musulmanbekov for discussions of some aspects of cascade-evaporation model calculations.

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Abdelsalam, A., Vokál, S., Tolstov, K.D. et al. Central collisions of helium and carbon nuclei with silver and bromine nuclei at a momentum of 4·5 A GeV/c. Czech J Phys 34, 1196–1204 (1984). https://doi.org/10.1007/BF01590066

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  • DOI: https://doi.org/10.1007/BF01590066

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