Systematics of α--nucleus optical potentials
Abstract
Double--folded optical α--nucleus potentials can be used to calculate elastic scattering cross sections in a wide mass-- and energy region. Because of the systematic behavior of the potential parameters we are able to obtain reliable optical potentials for astrophysically relevant reactions even without scattering data in low--energy region. As example we analyze the capture reaction 144 Sm(α,γ)148.
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