The reaction ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$(${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$)${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$ was studied at 155 MeV. The reaction mechanism shows characteristics of a direct $\alpha$ transfer process with high-spin enhancement. Observed transitions are discussed in terms of high rotational bands, and high-spin members of the SU(3) (9,0) and (12,0) bands are assigned.

NUCLEAR REACTIONS ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$(${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$), $E=155\mathrm{}$ MeV; ${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$ deduced levels; semiclassical reaction model, SU(3) model; deduced rotational bands.

• Received 19 January 1976

DOI:https://doi.org/10.1103/PhysRevC.14.2133