Nuclear Structure inTe127from theTe126(d, p)Reaction

Abstract

The ${\mathrm{Te}}^{126}(d, p){\mathrm{Te}}^{127}$ reaction induced by 13-MeV deuterons was studied with the Aldermaston multigap spectrograph. Essentially all states up to 2.7-MeV excitation were observed, although a few unresolved doublets were found in higher-resolution studies. Of the 8 holes in the 50-82-neutron shell, 2.9 are in $d_{\frac{3}{2}}$, 1.0 is in $s_{\frac{1}{2}}$, and 4.2 are in $h_{\frac{11}{2}}$. These results agree well with pairing-theory predictions, but are considerably different from the results for the isotonic nucleus studied in ${\mathrm{Sn}}^{124}(d, p){\mathrm{Sn}}^{124}$ reactions. 67% of the $d_{\frac{3}{2}}$ strength, 83% of the $s_{\frac{1}{2}}$ strength, and 100% of the $h_{\frac{11}{2}}$ strength are in single nuclear states, the three lowest-energy states in ${\mathrm{Te}}^{127}$.