Calculation of the neutron direct inelastic scattering cross section of 238U

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
¹
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
¹
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.