Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2007-07-11
Phys.Rev.C81:034612,2010; Phys.Rev.C83:057601,2011
Physics
Nuclear Physics
Nuclear Theory
14 pages, 4 figures, RevTeX4, accepted by Phys Rev C
Scientific paper
10.1103/PhysRevC.81.034612 10.11
The dynamic polarization potential (DPP) contribution to the effective proton-nucleus interaction, that is due to the coupling of deuteron channels, is evaluated by applying $S_{lj} \to V(r)$ inversion to the elastic channel $S$-matrix from coupled reaction channel calculations of proton elastic scattering. This was done for protons scattering from $^{10}$Be at 12, 13, 14, 15, and 16 MeV; non-orthogonality corrections were included. We find a consistent pattern of a repulsive real and an absorptive imaginary DPP, with the absorption shifted to a larger radius. This is consistent with what has been found for proton scattering from the neutron skin nucleus $^8$He. The DPP is not of a form that can be represented by a renormalization of the bare potential, and has properties suggesting an underlying non-local process. We conclude that deuteron channels cannot be omitted from a full theoretical description of the proton-nucleus interaction (optical potential).
Keeley N.
Mackintosh Raymond S.
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