Ta 181 ( p , t ) Ta 179 reaction: Evidence for particle-core coupling

The differential cross sections of tritons emitted in the $^{181}\mathrm{Ta}$($p$,$t$)$^{179}\mathrm{Ta}$ reaction have been measured at a bombarding energy of 19 MeV. The energy resolution was better than 15 keV. Thirty-eight levels in $^{179}\mathrm{Ta}$ were observed. A distorted wave program for two nucleon transfer was used to identify levels obtained with $L=0$ transfer. A comparison with the corresponding $L=0$ transfers in the $^{180}\mathrm{Hf}$($p$,$t$)$^{178}\mathrm{Hf}$ reaction shows evidence for quasiparticle-core coupling in ${\frac{7}{2}}^{+}$ states of $^{179}\mathrm{Ta}$.