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Il Nuovo Cimento A (1965-1970)

, Volume 81, Issue 1, pp 79–87 | Cite as

The reactions37Cl+27Al and16O+48Ti in the energy region of (100÷200) MeV. Scission of a composite system

  • T. Mikumo
  • W. Yokota
  • S. M. Lee
  • Y. Nagashima
  • T. Nakagawa
  • Y. Fukuchi
  • K. Ideno
  • Y. Tomita
  • S. Takeuchi
  • S. Hanashima
  • W. Galster
Article

Summary

The37Cl+27Al and16O+48Ti reactions leading to the same composite system64Zn were studied at bombarding energies corresponding to excitation energies between 85 MeV and 101 MeV. The projectilelike and targetlike products were detected in two counter telescopes. For each element, energy spectra, angular distributions of total kinetic energy 〈TKE〉 A,Z and energy-integrated cross-sections (dσ/dθ) A,Z were obtained. In both cases, two distinct components show up, the second one at energies and angles larger than given values. Whereas the first one clearly reflects « directlike » processes, the second one can be accounted for by using a simple effective interacting potential.

PACS

25.70. - Heavy-ion-induced reactions and scattering 

Riassunto

Sono state studiate le reazioni37Cl+27Al e16O+48Ti che portano allo stesso sistema composto64Zn ad energie di bombardamento che corrispondono ad energie di eccitazione tra 85 MeV e 101 MeV. I prodotti di tipo proiettile e di tipo bersaglio sono stati individuati in due telescopi a contatori. Per ciascun elemento sono stati ottenuti gli spettri d’energia, le distribuzioni angolari dell’energia cinetica totale 〈TKE〉 A,Z e le sezioni d’urto integrate sull’energia (dσ/dθ) A,Z . In entrambi i casi, si evidenziano due componenti distinte, la seconda ad energie e angoli maggiori di certi valori. Mentre la prima riflette chiaramente processi di tipo diretto, la seconda può essere spiegata utilizzando un semplice potenziale d’interazione efficace.

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References

  1. (1).
    See, for example,Nguyen Van Sen, J. C. Gondrand, F. Merchez andR. Darves-Blanc:Phys. Rev. C,22, 2424 (1980);27, 194 (1983), and references therein.CrossRefADSGoogle Scholar
  2. (2).
    V. V. Volkov:Phys. Rep.,44, 93 (1978).CrossRefADSGoogle Scholar
  3. (3).
    M. Sato, M. Sasagase, Y. Nagashima, J. Schimizu, T. Nakagawa, Y. Fukuchi andT. Mikumo:Phys. Rev. C,27, 2621 (1983).CrossRefADSGoogle Scholar
  4. (4).
    M. H. Simbel andA. Y. Abul-Magd:Z. Phys. A,294, 277 (1980).CrossRefADSGoogle Scholar
  5. (5).
    T. M. Cormier, P. Braun-Munziger, P. M. Cormier, J. W. Harris andL. L. Lee:Phys. Rev. C,16, 215 (1977).CrossRefADSGoogle Scholar

Copyright information

© Società Italiana di Fisica 1984

Authors and Affiliations

  • T. Mikumo
    • 1
  • W. Yokota
    • 1
  • S. M. Lee
    • 1
  • Y. Nagashima
    • 1
  • T. Nakagawa
    • 1
  • Y. Fukuchi
    • 1
  • K. Ideno
    • 2
  • Y. Tomita
    • 2
  • S. Takeuchi
    • 2
  • S. Hanashima
    • 2
  • W. Galster
    • 3
  1. 1.Institute of Physics and Tandem Accelerator CenterUniversity of TsukubaIbarakiJapan
  2. 2.Japan Atomic Energy Research InstituteTokai IbarakiJapan
  3. 3.Hahn-Meitner Institut für KernforschungBerlinB.R.D.

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