The European Physical Journal A - Hadrons and Nuclei

, Volume 17, Issue 2, pp 195–212

Emission of intermediate-mass fragments in the interaction of 16O with 59Co, 93Nb and 197Au

  • E. Gadioli
  • G.F. Steyn
  • F. Albertini
  • C. Birattari
  • M. Cavinato
  • S.H. Connell
  • A.A. Cowley
  • E. Fabrici
  • S.V. Förtsch
  • E. Gadioli Erba
  • J.J. Lawrie
  • M. Pigni
  • J.P.F. Sellschop
  • E. Sideras Haddad

DOI: 10.1140/epja/i2003-10007-5

Cite this article as:
Gadioli, E., Steyn, G., Albertini, F. et al. Eur Phys J A (2003) 17: 195. doi:10.1140/epja/i2003-10007-5

Abstract:

In this paper we study the emission of 8Begs, B and N fragments in the interaction of 16O ions with 59Co, 93Nb and 197Au at incident energies varying from 6 to 25 MeV/nucleon. The spectra of these fragments, as well as those of C fragments studied in a previous paper, are dominated at forward angles by a component originating from break-up of 16O. At the higher incident energies break-up occurs after quite a sizeable projectile energy loss. Another mechanism which dominates at large emission angles, favours the emission of low-energy fragments and is attributed to the coalescence of nucleons during the cascade of nucleon-nucleon interactions by means of which the excited nuclei produced in the primary two-ion interaction thermalize.

PACS. 25.70.Gh Compound nucleus – 25.70.Mn Projectile and target fragmentation

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2003

Authors and Affiliations

  • E. Gadioli
    • 1
  • G.F. Steyn
    • 2
  • F. Albertini
    • 1
  • C. Birattari
    • 1
  • M. Cavinato
    • 1
  • S.H. Connell
    • 3
  • A.A. Cowley
    • 4
  • E. Fabrici
    • 1
  • S.V. Förtsch
    • 2
  • E. Gadioli Erba
    • 1
  • J.J. Lawrie
    • 2
  • M. Pigni
    • 1
  • J.P.F. Sellschop
    • 3
  • E. Sideras Haddad
    • 3
  1. 1.Università di Milano and I.N.F.N., Sezione di Milano, Milano, ItalyIT
  2. 2.iThemba Laboratory for Accelerator-Based Sciences, Somerset West 7129, South AfricaZA
  3. 3.Schonland Research Centre, Witwatersrand University, Johannesburg, South AfricaZA
  4. 4.Department of Physics, University of Stellenbosch, Matieland 7602, South AfricaZA