Differential cross sections were measured at Ep = 35 MeV for the 13C(p, n) and 13C(p, p′) reactions leading to the four low-lying states in the mirror nuclei 13N and 13C. 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, p′)13C(3.09 MeV, 1 2+) 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 13C(g.s., 1 2-) → 13C(3.09 MeV, 1 2+) transition is not correctly described by currently available shell-model wave functions.
- Nuclear Reactions
ASJC Scopus subject areas
- Nuclear and High Energy Physics