Data for the ${}_{}{}^{183}{}_{}{}^{}\mathrm{W}$($p$,$t$)${}_{}{}^{181}{}_{}{}^{}\mathrm{W}$ reaction are presented. States corresponding to the coupling of the odd neutron to collective excitations of the even core are identified and used to test the microscopic structure of these collective excitations. In particular, the proposed nature of the pairing isomers observed in the neighboring even nuclei is confirmed. Information concerning the previously observed anomalous population of $2^{+}$ states in this mass region is also presented.

NUCLEAR REACTIONS ${}_{}{}^{183}{}_{}{}^{}\mathrm{W}$($p$,$t$), $E_p=21\mathrm{}$ MeV; measured $\sigma (E_t,\Theta )$. ${}_{}{}^{181}{}_{}{}^{}\mathrm{W}$ deduced levels, $L$, $\pi$, $J$. Nuclear structure analysis.

• Received 20 August 1979

DOI:https://doi.org/10.1103/PhysRevC.21.2288