O18(He3,p)F20reaction and(sd)4states inF20

The ${}_{}{}^{18}{}_{}{}^{}\mathrm{O}({}_{}{}^3{}_{}{}^{}\mathrm{He},p){}_{}{}^{20}{}_{}{}^{}\mathrm{F}$ reaction has been studied at a ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ bombarding energy of 18 MeV. The resulting angular distributions for states of probable ${\mathrm{}\left(\mathrm{sd}\right)\mathrm{}}^4$ configuration have been examined by the techniques of distorted-wave analysis, utilizing two-particle coefficients of fractional parentage obtained from recent shell-model calculations. Satisfactory agreement is found between theory and the present experiment.