Self-energy of Lambda in finite nuclei
The self--energy of the strange baryon $Λ$ in $^{17}$O is calculated using a microscopic many--body approach which accounts for correlations beyond the mean--field or Hartree--Fock approximation. The non-locality and energy-dependence of the $Λ$ self--energy is discussed and the effects on the bound and scattering states are investigated. For the nucleon--hyperon interaction, we use the potential models of the Jülich and Nijmegen groups.
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