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Double maximum angular distributions in high energy nuclear collisions

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Il Nuovo Cimento (1955-1965)

Summary

A detailed statistical analysis of the shape of the angular distribution of secondary particles generated in 65 nuclear collisions for primary energies higher than 1012 eV has been presented. The double maximum shape of the distribution (in coordinate log tgθ) is a general feature of the events with high degree of anisotropy of secondaries in CM system. It has been found that the shape of the angular distribution is in agreement with the predictions of the two-centre model of multiple meson production both for nucleon-nucleon and nucleon-heavy nucleus collision. A new parameterD, which is a measure of the deviation from the normal shape of the distribution towards the two centre distribution and also a coordinate convenient for visualizing this deviation, have been introduced.

Riassunto

Viene presentata una dettagliata analisi statistica della distribuzione angolare delle particelle secondarie generate in 65 collisioni nucleari con energie di primari maggiori di 1012 eV. La forma a doppio massimo della distribuzione (in coordinate log tgϑ), è una caratteristica generale degli eventi ad alto grado di anisotropia dei secondari nel sistema del CM. Si è riscontrato che la forma della distribuzione angolare è in accordo con le predizioni del modello a due centri per la multipla-produzione di mesoni sia per collisioni nucleone-nucleone sia per collisioni nucleone-nucleo pesante. Si sono introdotti un nuovo parametroD, che è una misura della deviazione dalla forma normale verso la distribuzione a due centri, ed altresi una coordinata adatta a visualizzare questa deviazione.

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Authors and Affiliations

  1. Cosmic Ray Department, Institute of Nuclear Research, Kraków

    J. Gierula & M. Mięsowicz

  2. General Physics Department, School of Mining and Metallurgy, Kraków

    J. Gierula & M. Mięsowicz

  3. Cosmic Ray Department, Institute of Nuclear Research, Warszawa

    P. Zieliński

  4. Physics Department, University of Warszawa, Warszawa

    P. Zieliński

Authors
  1. J. Gierula
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  2. M. Mięsowicz
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  3. P. Zieliński
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Gierula, J., Mięsowicz, M. & Zieliński, P. Double maximum angular distributions in high energy nuclear collisions. Nuovo Cim 18 (Suppl 1), 102–119 (1960). https://doi.org/10.1007/BF02726041

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