The resonating-group method in the single-channel approximation is used to investigate the ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ + ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ system. The result shows that there exist a number of bound and sharp resonance levels in the energy region below about 10 MeV. In addition, it is found that, with the introduction of a phenomenological imaginary potential to take reaction effects into account, the calculation can yield differential cross sections in satisfactory agreement with experimental data. The effect of the Pauli principle is also examined. Here one finds that the odd-even feature is rather prominent and, similar to the $d$+${}_{}{}^3{}_{}{}^{}\mathrm{He}$ case, has distinctly different behavior in the two channel-spin states.

NUCLEAR REACTIONS ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$(${}_{}{}^3{}_{}{}^{}\mathrm{He}$, ${}_{}{}^3{}_{}{}^{}\mathrm{He}$); calculated phase shifts and $\sigma \left(\theta \right)$. Resonating-group method and effects of Pauli principle.

• Received 31 October 1979

DOI:https://doi.org/10.1103/PhysRevC.21.1170