PRE-EMISSION OF ALPHA-PARTICLES IN DEEP-INELASTIC REACTIONS

In-plane angular and energy correlations between α particles and heavy ejectiles have been measured for the reaction N14 + Ni58 at 148 MeV. The coincidence cross sections may be parametrized as a product of singles cross sections for the detection of α particles and heavy ejectiles. The observed correlations indicate that the α particles are emitted at an early stage, prior to the formation of the deep-inelastic fragments. © 1979 The American Physical Society.