Abstract
By some model calculations it is shown that for narrow resonances the single-particle and coupled channel resonance functions defined by different prescription (scattering, Gamow, Weinberg solutions) are nearly identical. Only those stripping processes might or do distinguish the resonant functions whose final state is a broad resonance or a resonance in a surface-coupled or complex coupled channel process or the contribution to the transition matrix element from the region outside the nucleus is important. A definition for the spectroscopic factor of a Gamow state is given. According to some numerical examples it satisfied the physical expectation.
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Lovas, R.G. Model calculations for form and spectroscopic factors in stripping to resonant states. Acta Physica 36, 165–178 (1974). https://doi.org/10.1007/BF03159646
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DOI: https://doi.org/10.1007/BF03159646