New levels at high excitation in ${}_{}{}^{110}{}_{}{}^{}\mathrm{Sn}$ have been determined using a γ-ray multiplicity filter and the reaction ${}_{42}{}^{94}{}_{}{}^{}\mathrm{Mo}$${(}^{19}$F, p2nγ${)}_{{\mathrm{}}^1{\mathrm{}}_{50}^{10}}$Sn at 83 MeV. Evidence is presented for a ΔJ=2 band with spins from ${10}^{+}$ to ${20}^{+}$. The behavior of this band suggests that it arises from the ν($h_{11/2}$${)}^2$ configuration in ${}_{}{}^{110}{}_{}{}^{}\mathrm{Sn}$ rather than the known 2p2h proton configuration structure present in other even heavier tin isotopes.

• Received 20 April 1987

DOI:https://doi.org/10.1103/PhysRevC.36.1006