1. sinv in ABLA Particle-decay width in Weisskopf-Ewing approach:
 = Ei - S - Ef
Inverse cross section:
Strong absorption model – pR2
Optical model –
Parameterization (e.g. NASA)

2. Strong absorption model
Analogous to the diffraction of light by a totally absorbing disc or sphere
Bn - Bass model for fusion of two spherical nuclei.

3. Comparison with data

4. Comparison with data

5. Comparison with data

6. Comparison with data

7. Comparison with SCAT2 optical model
- SCAT2 model - O. Bersillon:
- spherical OM
- real potential: Woods-Saxon, imaginary - volume: WS, surface: derivative WS or Gaussian
- OM parameters: several options, also as input

8. Question
- Parameters of different optical models fitted to the experimental data
- But – experimental data (capture cross section, elastic scattering …) measured on “cold” nuclei, what we need for sinv is capture on “hot” nuclei.
- Are such optical models applicable for calculating emission of particles (especially neutrons) from excited nuclei?