Excited states in ${}^{129}$I were populated with the ${}^{124}$Sn(${}^7$Li,$2n$) reaction at 23 MeV. In-beam measurements of $\gamma$-ray coincidences were performed with an array of eight HPGe detectors and five LaBr${}_3$(Ce) scintillation detectors. Based on the $\gamma \gamma$ coincidence data, a positive parity band structure built on the $7/2^{+}$ ground state was established and the $\pi g_{7/2}$ configuration at oblate deformation was assigned to it. The results are compared to interacting Boson-Fermion model (IBFM) and total Routhian surface (TRS) calculations.

• Received 12 September 2012

DOI:https://doi.org/10.1103/PhysRevC.87.014329