Abstract:
Based on the generalized reduced
R-matrix theory, the RAC program (R-matrix Analysis Code) is used to perform a comprehensive analysis of all available experimental data for the
5Li system, providing a complete set of evaluated nuclear data in the energy ranges of 1×10
–3~20 MeV for deuteron-induced reactions and 1×10
–3~34.3 MeV for proton-induced reactions. The evaluated data are internally consistent. The integral cross sections include reactions such as
3He (d,p)
4He and
4He (p,d)
3He, while the differential cross sections include
3He (d,p)
4He,
4He (p,d)
3He,
3He (d,d)
3He, and
4He (p,p)
4He. The RAC evaluation results are in good agreement with both experimental data and ENDF/B–VIII.1 evaluations. By incorporating the constraints of the direct and inverse reactions into the
5Li system, the reliability of the evaluated cross sections
3He (d,p)
4He and
4He (p,d)
3He has been improved. For the
5Li system, a key focus is the
3He (d,p)
4He reaction, for which the ENDF/B–VIII.1 evaluation shows noticeable deviations from existing experimental data beyond 10 MeV, whereas the RAC results are more consistent with current experimental data.