Analysis of neutron double-differential cross section of n+14N at 14.2 MeV

By using a new reaction model for light nuclei, the double-differential cross section of n+N-14 reactions at E-n = 14.2 MeV has been analyzed. In the case of n+N-14 reactions, the reaction mechanism is very complex, there are over one hundred opened partial reaction channels even at incident energy E-n = 14.2 MeV. In this paper the opened reaction channels are listed in detail. With LUNF code the model calculation is performed to analyze the double-differential cross sections of total outgoing neutron. The calculated results agree fairly with the experimental data. The results indicate that the pre-equilibrium mechanism dominates the whole reaction processes, and the recoil effect in light nuclear reactions is essentially important. He-5 emission has been considered, but it is only a small contribution to,the double-differential cross section at incident energy E-n = 14.2 MeV.