One-neutron transfer reactions toSm150

Abstract

The ($d, t$) reaction on $^{151}\mathrm{Sm}$ has been investigated at a deuteron energy of 17 MeV; the ($d, p$) reaction on the isotope $^{149}\mathrm{Sm}$ at a deuteron energy of 12.5 MeV. For the stripping reaction angular distributions were taken in 2.5\ifmmode^\circ\else\textdegree\fi{} steps in the range of $7.5\ifmmode^\circ\else\textdegree\fi{}\ensuremath{\le}{\ensuremath{\theta}}_{\mathrm{lab}}\ensuremath{\le}35\ifmmode^\circ\else\textdegree\fi{}$ and in 5\ifmmode^\circ\else\textdegree\fi{} steps for $35\ifmmode^\circ\else\textdegree\fi{}\ensuremath{\le}\ensuremath{\theta}\ensuremath{\le}60\ifmmode^\circ\else\textdegree\fi{}$. The experimental energy resolution is 10-12 keV full width at half-maximum (FWHM). For the pickup reaction angular distributions were taken in 2.5\ifmmode^\circ\else\textdegree\fi{} steps in the range of $7.5\ifmmode^\circ\else\textdegree\fi{}\ensuremath{\le}{\ensuremath{\theta}}_{\mathrm{lab}}\ensuremath{\le}30\ifmmode^\circ\else\textdegree\fi{}$ and in 5\ifmmode^\circ\else\textdegree\fi{} steps up to ${\ensuremath{\theta}}_{\mathrm{lab}}=45\ifmmode^\circ\else\textdegree\fi{}$. The experimental energy resolution is 6-8 keV FWHM. Spectroscopic factors and $l$ transfers were extracted by distorted-wave Born approximation analysis. The spectroscopic information is compared to one-nucleon transfer results of the lower mass Sm isotopes.