Аннотация
The cross sections for the elastic scattering reactions
Sn-112,Sn-124(alpha,alpha)Sn-112,Sn-124 at energies above and below the
Coulomb barrier are presented and compared to predictions for global
alpha-nucleus potentials. The high precision of the new data allows a
study of the global alpha-nucleus potentials at both the proton- and
neutron-rich sides of an isotopic chain. In addition, local
alpha-nucleus potentials have been extracted for both nuclei and used to
reproduce elastic scattering data at higher energies. Predictions from
the capture cross section of the reaction Sn-112(alpha,gamma)Te-116 at
astrophysically relevant energies are presented and compared to
experimental data.
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