Light particle emission in heavy ion reactions at 10 and 20 MeV/nucleon

Session IV. Light-Particle Emmission in Deep Inelastic Collisions
Part of the Lecture Notes in Physics book series (LNP, volume 117)


Energy and angular correlations between light particles and heavy ions were measured for the reaction 40Ar+93Nb at 10 MeV / nucleon and far the reaction 16O+Ti at 20 MeV/nucleon. The correlation data reveal several pre-equilibrium components: one component is characterized by “beam velocity” a particles and shows up in coincidence with both fusion-like fragments as well as quasi-elastic and deepinelastic scattered fragments. The other pre-equilibrium component is observed only in coincidence with deep-inelastic scattered fragments and is characterized by two maxima separated by a pronounced minimum in the direction of the detected projectile-like fragment. It is proposed that the first pre-equilibrium component stems from the very early stages of heavy ion collision before the system has had a chance to rotate whereas the second component originates from the later stages of heavy ion collision and the first instants of separation.


Angular Correlation Light Particle Reaction Plane Detection Angle Forward Angle 


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Copyright information

© Springer-Verlag 1980

Authors and Affiliations

  • H. HO
    • 1
    • 2
  1. 1.Max-Planck-Institut für KernphysikHeidelbergW.-Germany
  2. 2.College Station

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