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Relativistic Mean-Field and RPA description of Exotic Nuclear Structure


Vretenar, Dario
Relativistic Mean-Field and RPA description of Exotic Nuclear Structure // Nuclear Structure - Nuclear Astrophysics / Georgios A. Lalazissis (ur.).
Thessaloniki, Greece: Art of Text, Thessaloniki, Greece, 2003. str. 173-208


Naslov
Relativistic Mean-Field and RPA description of Exotic Nuclear Structure

Autori
Vretenar, Dario

Vrsta, podvrsta i kategorija rada
Poglavlja u knjigama, znanstveni

Knjiga
Nuclear Structure - Nuclear Astrophysics

Urednik/ci
Georgios A. Lalazissis

Izdavač
Art of Text, Thessaloniki, Greece

Grad
Thessaloniki, Greece

Godina
2003

Raspon stranica
173-208

ISBN
960-312-118-5

Ključne riječi
Relativistic Hartree-Bogoliubov model, relativistic RPA, nuclear halo, proton emitters, exotic resonances

Sažetak
A review of recent applications of the relativistic mean-field theory to the structure of exotic nuclei is presented. Models based on the relativistic mean-field approximation provide a microscopically consistent, and yet simple and economical description of the nuclear many-body problem. By adjusting just a few model parameters: coupling constants and effective masses to global properties of simple spherical nuclei, it has been possible to describe many nuclear structure phenomena, not only in nuclei along the valley of $\beta$-stability, but also in exotic nuclei with extreme isospin values and close to the particle drip lines. The relativistic Hartree-Bogoliubov model has been applied in studies of structure phenomena that include: the strong isospin dependence of the effective spin-orbit interaction and the resulting modification of surface properties, the suppression of the spherical $N=28$ shell gap for neutron-rich nuclei and the related phenomenon of deformation and shape coexistence, the structure of the proton drip line nuclei in the region $31\leq Z \leq 73$, and ground-state proton radioactivity in nuclei $53 \leq Z \leq 73$. The model has also been used to calculate parity violating elastic electron scattering on neutron-rich nuclei, and neutron density distributions for atomic parity nonconservation experiments. The relativistic random phase approximation, based on effective mean-field Lagrangians with nonlinear meson self-interaction terms, has been used in the analysis of the dynamics of isoscalar dipole modes and of the structure of pygmy resonances.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0119250

Ustanove
Prirodoslovno-matematički fakultet, Zagreb

Autor s matičnim brojem:
Dario Vretenar, (9570)