Elsevier

Nuclear Physics A

Volume 363, Issue 1, 15 June 1981, Pages 253-268
Nuclear Physics A

Energy dependence of the 24Mg(16O, 12C)28Si reaction

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Abstract

Excitation functions for the reaction 24Mg(16O, 12C)28Si(g.s., 2+1) were measured at 5°(lab) in the energy range 32 < Ec.m. < 49 MeV. Although the resonant structure, previously observed at lower energies, becomes progressively weaker, three new correlated maxima have been observed near Ec.m. = 37.5, 40.2 and 43.5 MeV. Angular distribution measurements at these energies yield spin assignments, from P2j(cos θ) comparisons, of 27, 29 and 31, respectively. Attempts to find a consistent optical-model fit to the elastic scattering in the entrance channel and an exact finite-range DWBA fit to the four-nucleon transfer reaction in this energy range were unsuccessful. Such a failure is to be expected if strong couplings between the elastic channel and inelastic channels of either the initial or final system are important. The features of the resonance phenomena in the transfer reaction are discussed within a band crossing model framework.

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    Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA.

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