A COMPARATIVE STUDY OF THE ‘?(~,P’)‘~C AND 13C(p, n)13N REACTIONS AT EP = 35 MeV

Differential cross sections were measured at E, = 35 MeV for the i3C(p, n) and “C(p, p’) reactions leading to the four low-lying states in the mirror nuclei i3N and ‘%. In addition, the analyzing powers were measured for the 13C(p, p’) reaction. The data are generally well accounted for by DWBA calculations except for the 13C(p, ~‘)‘~C(3.09 MeV, f’) reaction, for which the calculations cannot even reproduce the qualitative features of the data. A comparison of the (p, n) and the (p, p’) results suggests that the isoscalar part of the ‘3C(g.s.,f-) + 13C(3.09 MeV, &+) transition is not correctly described by currently available shell-model wave functions. E NUCLEAR REACTIONS 13C(p, n), (p, p’), E = 35 MeV; measured u( 0), A( 0). 13C level deduced transition isoscalar component. Enriched target. DWBA analysis.