The nuclide ${}^{17}\mathrm{Ne}$ is studied theoretically in a three-body ${}^{15}\mathrm{O}+p+p$ model. We demonstrate that the experimental condition for existence of a proton halo in ${}^{17}\mathrm{Ne}$ can be reasonably quantified in terms of $s/d$ configuration mixing. We discuss experimental evidence for a proton halo in ${}^{17}\mathrm{Ne}$ and define which kind of experimental data could elucidate this issue.

• Received 15 October 2004

DOI:https://doi.org/10.1103/PhysRevC.71.051604