A discussion on double differential cross section of nucleons based onanisotropic intranuclear scattering is presented since the anisotropic behavior ofnucleon-nucleon scattering becomes strong with increasing inciden...A discussion on double differential cross section of nucleons based onanisotropic intranuclear scattering is presented since the anisotropic behavior ofnucleon-nucleon scattering becomes strong with increasing incident energy but in pre-vious theories the isotropic picture is used.The calculated results indicate that theanisotropic effect slightly improves the agreement with the experimental data.展开更多
-The energy spectrum and angular distributions of protons from <sup>93</sup>Nb（n,xp）reactions are measured by means of the USTC（University of Science and Technologyof China）multitelescope system.The to...-The energy spectrum and angular distributions of protons from <sup>93</sup>Nb（n,xp）reactions are measured by means of the USTC（University of Science and Technologyof China）multitelescope system.The total proton production cross sections are in fairagreement with the results of other groups.The energy spectrum is well explained by thesum of the spectra calculated on the basis of the preequilibrium and the H-F theories.Deviations from the previous measurement at the high energy end of the angle-inte-grated proton spectrum are found.The angular distributions which show a stronglyenergy-dependent forward-backward asymmetry are in fair agreement with thephenomenological model of Kalbach-Mann.展开更多
文摘A discussion on double differential cross section of nucleons based onanisotropic intranuclear scattering is presented since the anisotropic behavior ofnucleon-nucleon scattering becomes strong with increasing incident energy but in pre-vious theories the isotropic picture is used.The calculated results indicate that theanisotropic effect slightly improves the agreement with the experimental data.
基金The project supported in part by National Natural Science Foundation of China and CNNC
文摘-The energy spectrum and angular distributions of protons from <sup>93</sup>Nb（n,xp）reactions are measured by means of the USTC（University of Science and Technologyof China）multitelescope system.The total proton production cross sections are in fairagreement with the results of other groups.The energy spectrum is well explained by thesum of the spectra calculated on the basis of the preequilibrium and the H-F theories.Deviations from the previous measurement at the high energy end of the angle-inte-grated proton spectrum are found.The angular distributions which show a stronglyenergy-dependent forward-backward asymmetry are in fair agreement with thephenomenological model of Kalbach-Mann.
