Bulg. J. Phys. vol.44 no.S1 (2017), pp. 016-026



Phenomenological and Theoretical Optical Potentials

C. Giusti
Dipartimento di Fisica, Università degli Studi Pavia, Pavia, and INFN, Sezione di Pavia, Via Bassi 6, I-27100 Pavia, Italy
Abstract. The optical potential (OP) is a powerful instrument for calculations on a wide variety of nuclear reactions, in particular, for quasi-elastic lepton-nucleus scattering. Phenomenological OPs are successful in the description of data but may produce uncertainties in the interpretation of the results. Two recent theoretical OPs are presented: a global relativistic folding OP, that has been employed in relativistic models for quasi-elastic lepton-nucleus scattering, and a nonrelativistic OP derived from nucleon-nucleon chiral potentials at fourth order (N3LO), that has been applied to elastic proton-nucleus scattering.

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