A Study of the Reactions 149,151 Sm (p,t) 147,149 Sm

Abstract

Two-neutron pick up 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 degrees and 8 degrees. Unlike the two-neutron transfer data on neighbouring even-even targets, the angular distributions indicated l=o 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=o 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.