Abstract
The microscopic optical matrix potential (OMP m) for rotational nuclei is constructed. The structure of the non-diagonal elements of OMP m is investigated and compared with the deformed part of the phenomenological optical potential (OMP p) employed in analyses of nucleon inelastic scattering data. The deformed form of OMP p relates the real parts of the phenomenological form factors. This relation is shown to be approximately satisfied by the microscopic form factors. It is proved that the decay amplitudes of complicated compound states to similar channels are correlated, which we call the similar channels effect (SCE). Some channels are similar since the rotational states of the target are obtained from the same intrinsic state. The commonly used deformed imaginary part of OMP p at very low energies (few MeV or Iess) may be justified as being due to the similar channels effect.
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