Mg24(p→, p0)Mg24and the 6.11 MeV state ofAl25

Abstract

The cross section and analyzing power for $^{24}\mathrm{Mg}(\stackrel{\ensuremath{\rightarrow}}{p}, {p}_{0})^{24}\mathrm{Mg}$ have been measured at 13 angles and 11 energies in the vicinity of the 4.0 MeV resonance. A phase-shift analysis of the results yields a spin and parity assignment of ${\frac{3}{2}}^{+}$ in conflict with the accepted value of ${\frac{5}{2}}^{+}$.NUCLEAR REACTION $^{24}\mathrm{Mg}(p, p)$, $E=3.89\ensuremath{-}4.17$ MeV; measured $\ensuremath{\sigma}(E, \ensuremath{\theta})$, $P(E, \ensuremath{\theta})$; $^{25}\mathrm{Al}$ deduced resonance, $J$, $\ensuremath{\Pi}$, $\ensuremath{\Gamma}$, ${\ensuremath{\Gamma}}_{p}$; enriched target.