Exotic Nuclei in Relativistic and Non-Relativistic Models Exotic Nuclei large isospin asymmetry - nuclei close to the drip lines - superheavy nuclei non-relativistic.

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Presentation transcript:

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

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

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

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

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

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

Single-particle spectrum in 208 Pb

Charge radii staggering in 208 Pb

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

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

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

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

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

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