The proton optical-model potential near the Coulomb barrier |
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Authors: | JS Eck WJ Thompson |
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Institution: | 1. University of North Carolina, Chapel Hill, NC 27514, USA;2. Triangle Universities Nuclear Laboratory, Durham, NC 27706, Germany |
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Abstract: | Proton elastic scattering data from 197Au, 208Pb and 209Bi at energies near the Coulomb barrier are analyzed. The energy dependences of the real volume and imaginary surface-derivative potential depths VR and WSF of a local optical-model potential with fixed geometric parameters are found to be much more rapid than at higher energies. The strong energy dependence of VRnear the Coulomb barrier is explained in terms of the non-locality of the nucleon-nucleus interaction. |
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Keywords: | Nuclear Reactions |
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