Spin and parity of the 4.82-MeV level of 27Mg

The spin and parity of the 4.82-MeV level of ²⁷Mg are assigned to be 1/2⁺ by the ²⁶Mg(d,p)²⁷Mg reaction, in contrast with the assignments by Cujec and Hinds et al. The reaction protons were analyzed with a broad-range magnetic spectrograph and the energy resolution of the whole system was less than 7 keV. This level is a very strong single-particle state and the isobaric-analog state of the 11.758-MeV level of ²⁷A1.[NUCLEAR REACTION ²⁶Mg(d,d), (d,p), E=3.1 MeV; measured $\sigma \left(E;\Theta \right)$; deduced optical-model parameters. ²⁷Mg levels deduced J, π, S, IAS. Enriched target, DWBA analysis, resolution 7 keV; $\Theta =15-{120}^{\circ }$.]