The structure of the weakly bound ${}_9^{26}$F${}_{17}$ odd-odd nucleus, produced from ${}^{27,28}$Na nuclei, has been investigated at GANIL by means of the in-beam $\gamma$-ray spectroscopy technique. A single $\gamma$-line is observed at 657(7) keV in ${}_9^{26}$F which has been ascribed to the decay of the excited $J=2^{+}$ state to the $J=1^{+}$ ground state. The possible presence of intruder negative parity states in ${}^{26}$F is also discussed.

• Received 27 October 2011

DOI:https://doi.org/10.1103/PhysRevC.85.017303