Abstract
States in /sup 23/Na were populated using the /sup 12/C(/sup 15/N,..cap alpha..) reaction. Excitation functions were measured in the energy range E/sub c.m./=9.51--17.33 MeV for 41 states in /sup 23/Na from 0 to 12.2 MeV in excitation energy. Angular distributions were measured at selected energies between about 2/sup 0/ and 110/sup 0/ (c.m.). A large number of correlated resonantlike structures with approx.400 keV (c.m.) widths were observed in addition to statistical fluctuations in the /sup 12/C(/sup 15/N,..cap alpha..) data. Forward peaking of the on-resonant angular distributions appear to be a signature of the excitation of high-spin states in the compound nucleus. Elastic scattering excitation functions measured at backward angles show structures which are not well correlated with the anomalies seen in the reaction channels. The /sup 12/C(/sup 15/N,..cap alpha..) data suggest that the resonant portion of the cross sections can be attributed to the population of high-spin levels close to the yrast line of the compound nucleus.
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