The isospin mirror of the $J^{\pi }{=3/2\mathrm{}}^{+}$ ${}^{18}\mathrm{F}+p$ resonance at $E_x=7.070\mathrm{}\mathrm{MeV}$ in ${}^{19}\mathrm{Ne}$ has been measured in ${}^{19}\mathrm{F}$ via the ${}^{15}{\mathrm{N}(\mathrm{\alpha },\mathrm{\gamma })}^{19}\mathrm{F}$ reaction using the RHINOCEROS windowless gas target at the Stuttgart 4-MV Dynamitron facility. This resonance is measured to have the following properties: $E_x=7.101\mathrm{}\pm 0.001\mathrm{MeV},$ ${\Gamma }_{\mathrm{tot}}=28\mathrm{}\pm 1\mathrm{keV},$ and a strength of $\omega \gamma =0.77\mathrm{}\pm 0.11\mathrm{eV}$ (corresponding to ${\Gamma }_{\gamma }=0.39\mathrm{}\pm 0.06\mathrm{eV}$).

• Received 9 March 1998

DOI:https://doi.org/10.1103/PhysRevC.58.R10