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Exotic Nuclei in Relativistic and Non-Relativistic Models

Exotic Nuclei in Relativistic and Non-Relativistic Models. Exotic Nuclei. large isospin asymmetry. - nuclei close to the drip lines. - superheavy nuclei. Mean field type models. non-relativistic models: Skyrme-Hartree-Fock (SHF), Gogny-HF.

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Exotic Nuclei in Relativistic and Non-Relativistic Models

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  1. Exotic Nuclei in Relativistic and Non-Relativistic Models Exotic Nuclei large isospin asymmetry - nuclei close to the drip lines - superheavy nuclei Mean field type models • non-relativistic models: Skyrme-Hartree-Fock (SHF), Gogny-HF - relativistic models : Relativistic Mean Field (RMF) Relativistic Hartree-Fock Dirac- Brueckner- HF Quark Meson Coupling Model Chiral effective field theory and low-energy QCD

  2. Relativistic Mean Field Skyrme - HF Mean field different density dependence Spin-orbit different isospin dependence & density (P.G.Reinhard ’89) ( H. Flocard & P.G.Reinhard ) contribution of Fock terms ?!

  3. Relativistic Mean Field Skyrme - HF Effective mass Dirac mass : Lorentz mass : different value different isospin dependence N>Z contribution of Fock term ?!

  4. RMF versus SHF in finite nuclei Basic quantities : • binding energies, radii • shell structure: - spin-orbit splitting - level density (m*) Extrapolation far from stability ?

  5. RMF versus SHF: global observables ( P.G. Reinhard et al, nul-th/0012095)

  6. Spin-orbit splitting in RMF and SHF ( M. Bender et al, PRC60,034304 )

  7. Single-particle spectrum in 208Pb

  8. Charge radii staggering in 208Pb

  9. Hartree versus Hartree-Fock (A. Bouyssy et al, PRC36, 1987,380)

  10. RMF versus SHF in superheavy nuclei (T.Burvenich et al, nul-th/0302056)

  11. RMF versus SHF at driplines ( S. Mizutori et al, PRC61, 044326 )

  12. Neutron skins in RMF (J. Meng et al, PRL80, 1998,460)

  13. Neutron giant skin in Zr isotopes ? RMF results ( N. Sandulescu et al, PRC68,2003) Skyrme-HF: no giant skin !

  14. Beyond the standard (non-linear) RMF approach • Exchange terms and pion contribution ? ♪ • Density dependent coupling terms ? ♪ • Constraints from low-energy QCD ? ♪ • Quantum fields effects ? ♪ • Effect of nucleon structure ? “First principle” density functionals ? • Chiral effective field theory

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