16O spectroscopy and 12C(7Li , t) 16O transfer reaction using multichannel microscopic α+12C wave functions

We analyze the 12C(7Li, t) 16O transfer reaction in a semimicroscopic approach. We use fully antisymmetric alpha + 12C wave functions defined in the resonating group method (RGM) to study the 16O spectroscopy and overlap integrals. We include several alpha + 12C(0+, 1+, 2+, 3+, 4+) configurations. In the semimicroscopic calculations, we use the overlap integrals provided by the RGM formalism. The 7Li + 12C scattering wave functions are defined in the continuum-discretized coupled channel (CDCC) model to include 7Li breakup effects. The CDCC approach is tested by analyzing elastic scattering data, which are satisfactorily described at small angles. Our semimicroscopic results are in fair agreement with the experimental 12C(7Li, t) 16O data. We also determine the mirror 12C(7Be, 3He) 16O cross section, which is experimentally known. The transfer cross sections are obtained without any parameter fitting since the spectroscopic factors are an output of the RGM, and are not fitted to the data.