Resonances in ${}_{}{}^{20}{}_{}{}^{}\mathrm{Na}$ above the proton threshold have been studied by scattering radioactive ${}_{}{}^{19}{}_{}{}^{}\mathrm{Ne}$ beams off thick polyethylene targets. The isobaric ${}_{}{}^{19}{}_{}{}^{}\mathrm{F}$+p scattering was also examined. The analysis of the data under different theoretical approaches is discussed. The energy, total width, spin, and parity of two resonances in ${}_{}{}^{20}{}_{}{}^{}\mathrm{Na}$ were assigned unambiguously. The results are compared to those obtained by indirect methods.

• Received 28 March 1994

DOI:https://doi.org/10.1103/PhysRevC.50.1695