Abstract
Emission of fast particles in low-energy heavy-ion reactions is calculated using the exciton model. The initial state of the excitons is fixed by pure momentum-space considerations. By defining the projectile source and the target source as independent emitters of the fast particles, we calculate the angle-energy double-differential cross section. Angular dependence is obtained by fixing the total linear momenta of the projectile source and target source separately in addition to fixing their excitation energies. A linear-momentum-dependent level density is used for this purpose. This model is applied to several heavy-ion reactions whose energy is 10--20 MeV per particle. Our calculations reproduce the data for the high-energy part of the energy spectra well. Our model is one way of understanding the mechanism of the moving-source model.
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