The 149,151Sm(p,t)147,149Sm Reactions

Abstract

Two-neutron pickup reactions have been performed on targets of 149Sm and radioactive 151Sm using 18 MeV protons. The outgoing tritons from the 151Sm target were analyzed with a magnetic spectrograph at 16 angles between 6 and 80°. Unlike the two-neutron transfer data on neighboring even–even targets, the angular distributions indicated l = 0 transitions to many levels in the final nucleus. Partial angular distributions for the 149Sm(p,t)147Sm reaction were obtained, but showed only one strong l = 0 transition populating the 147Sm ground state. In addition, spectra from the 152Sm(p,t) reaction were measured at several angles in order to provide normalization to previous results.