The Theoretical Calculations Of Neutron-induced ~ (16) O Reaction

In order to describe the reactions of light nucleus more precisely, it is indispensable to develop the angular momentum dependent exciton model and unified Hauser-Feshbach and exciton model based on the Hauser-Feshbach and exciton model. Based on this new theoretical model the first particle can be described with pre-equilibrium and equilibrium mechanism. In this paper, the optical model is also used to get a set of optimum optical potential parameters of all kinds of particles, and calculate emission rates of all kinds of particles. Here, based on the new model, all kinds of cross sections and the angular distribution is calculated, moreover, the double-differential cross sections of total emitted neutrons is also calculated. For the reaction n, when the energy of neutron less than twenty MeV, the calculation indicate: in the whole reaction process, the pre-equilibrium emission is the major parts while the equilibrium emission gives the lightly implement: all of the second particle emissions is from discrete level to discrete level; there is no three body break-up process, the reaction channels of the cluster separation is already open, but the cross section is very small. Because of the light mass, the recoil effect is strong after the particle is emitted, so the recoil effect is must taken into account to maintain the energy balance. The result indicate: the exploration of the method of the theoretical calculation in this paper is successes.