The symmetry of the rotation-vibration spectra for linear triatomic molecules is described by means of the poop U(5). The rotation-vibration levels of linear triatomic molecules HCN and COS are calculated The infrared...The symmetry of the rotation-vibration spectra for linear triatomic molecules is described by means of the poop U(5). The rotation-vibration levels of linear triatomic molecules HCN and COS are calculated The infrared absorption line intensities are calculated for the molecule COS. The results are in good agreement with the experimental values.展开更多
In this work, Rotation model and rotation vibration coupled channel optical model (CCOM) were first used to carry out systematic calculation of neutron direct inelastic scattering cross section (DISCS) for the reacti...In this work, Rotation model and rotation vibration coupled channel optical model (CCOM) were first used to carry out systematic calculation of neutron direct inelastic scattering cross section (DISCS) for the reaction 238 U (n,n′) with an incident energy from 0 01 MeV to 20 0 MeV . The number of coupled energy levels involved in this calculation increased to eight at the first time, namely 0 +, 2 +, 4 +, 6 +, 8 + in the ground rotation band of 238 U and 1 -, 3 -, 5 - in the octupole vibration band with K=0 -. Some physical problems, such as how to get the optical model parameters of deformed nuclei and phonon amplitudes, are discussed. 展开更多
文摘The symmetry of the rotation-vibration spectra for linear triatomic molecules is described by means of the poop U(5). The rotation-vibration levels of linear triatomic molecules HCN and COS are calculated The infrared absorption line intensities are calculated for the molecule COS. The results are in good agreement with the experimental values.
文摘In this work, Rotation model and rotation vibration coupled channel optical model (CCOM) were first used to carry out systematic calculation of neutron direct inelastic scattering cross section (DISCS) for the reaction 238 U (n,n′) with an incident energy from 0 01 MeV to 20 0 MeV . The number of coupled energy levels involved in this calculation increased to eight at the first time, namely 0 +, 2 +, 4 +, 6 +, 8 + in the ground rotation band of 238 U and 1 -, 3 -, 5 - in the octupole vibration band with K=0 -. Some physical problems, such as how to get the optical model parameters of deformed nuclei and phonon amplitudes, are discussed.
