A total width ${\Gamma }_{\mathrm{c}.\mathrm{m}.\mathrm{}=303\mathrm{}\pm 30}$ eV was found for the $J^{\pi }$, T${=(1/2)\mathrm{}}^{\mathrm{-}}$,(3/2) level at 16.98 MeV in ${}_{}{}^9{}_{}{}^{}\mathrm{Be}$ by employing high resolution beams of our 450 kV electrostatic accelerator. Partial widths of selected decay channels are given. A comparison with existing data of the lowest T=(3/2) level in the same nucleus as well as the ones in the mirror nucleus ${}_{}{}^9{}_{}{}^{}\mathrm{B}$ is made. The results are discussed in terms of isospin mixing.

• Received 18 July 1986

DOI:https://doi.org/10.1103/PhysRevC.34.1991