Shell Structure of Exotic Nuclei

Abstract

Theoretical predictions and experimental discoveries for neutron-rich, short-lived nuclei far from stability indicate that the familiar concept of nucleonic shell structure should be considered as less robust than previously thought. The notion of single-particle motion in exotic nuclei is reviewed with a particular focus on three aspects: (i) variations of nuclear mean field with neutron excess due to tensor interactions; (ii) importance of many-body correlations; and (iii) influence of open channels on properties of weakly bound and unbound nuclear states.

14 pages, 7 figures, submitted to Progress in Particle and Nuclear Physics, Proc. of the International School of Nuclear Physics 28th Course, Radioactive Beams, Nuclear Dynamics and Astrophysics, Erice-Sicily: 16 - 24 September 2006

References in corpus (17)

• The Shell Model as Unified View of Nuclear Structure
• Magic numbers in exotic nuclei and spin-isospin properties of {\it NN} interaction
• Mean-field description of ground-state properties of drip-line nuclei: Pairing and continuum effects
• Shape Coexistence and the Effective Nucleon-Nucleon Interaction
• Evolution of Nuclear Spectra with Nuclear Forces
• Gamow Shell Model Description of Neutron-Rich Nuclei
• Axially Deformed Solution of the Skyrme-Hartree-Fock-Bogolyubov Equations using The Transformed Harmonic Oscillator Basis. The program HFBTHO (v1.66p)
• Shell stabilization of super- and hyperheavy nuclei without magic gaps
• Local Density Approximation for proton-neutron pairing correlations. I. Formalism
• Two-Particle Resonant States in a Many-Body Mean Field
• Gamow Shell Model Description of Weakly Bound Nuclei and Unbound Nuclear States
• Structure of the inner crust of neutron stars: crystal lattice or disordered phase ?
• Tensor interaction contributions to single-particle energies
• Theoretical Aspects of Science with Radioactive Nuclear Beams
• Proton-Neutron Coupling in the Gamow Shell Model: the Lithium Chain
• Density matrix renormalization group approach for many-body open quantum systems
• Exotic nuclear phases in the inner crust of neutron stars in the light of Skyrme-Hartree-Fock theory

Cited by in corpus (57)

• Nuclear magic numbers: new features far from stability
• Physics of Neutron Star Crusts
• Radioactive decays at limits of nuclear stability
• Evolution of shell structure in neutron-rich calcium isotopes
• Shell Model in the Complex Energy Plane
• Halos in medium-heavy and heavy nuclei with covariant density functional theory in continuum
• Nuclear energy density optimization: Shell structure
• Deformed relativistic Hartree Bogoliubov theory in continuum
• Charge radii and structural evolution in Sr, Zr, and Mo isotopes
• Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations
• Cold neutrons trapped in external fields
• Elastic proton scattering of medium mass nuclei from coupled-cluster theory
• Quantified Gamow Shell Model interaction for $psd$-shell nuclei
• Multipole strength function of deformed superfluid nuclei made easy
• Charge radii and neutron correlations in helium halo nuclei
• Recent Progress in Two-proton Radioactivity
• Living on the edge of stability, the limits of the nuclear landscape
• Evolution of the N=28 shell closure: a test bench for nuclear forces
• Similarity of nuclear structure in 132Sn and 208Pb regions: proton-neutron multiplets
• Structure and decays of nuclear three-body systems: the Gamow coupled-channel method in Jacobi coordinates
• Quasi-particle continuum and resonances in the Hartree-Fock-Bogoliubov theory
• Open problems in theory of nuclear open quantum systems
• Simplified modeling of cluster-shell competition in ${}^{20}$Ne and ${}^{24}$Mg
• Probing Nuclear forces beyond the drip-line using the mirror nuclei ${}^{16}$N and ${}^{16}$F
• Charge radii of ${}^{55,56}$Ni reveal a surprisingly similar behavior at $N=28$ in Ca and Ni isotopes
• Two-neutron halo structure of ${}^{31}$F
• Nuclear Halos and Drip Lines in Symmetry-Conserving Continuum HFB Theory
• Density matrix renormalization group approach to two-fluid open many-fermion systems
• On the origin of the anomalous behaviour of 2+ excitation energies in the neutron-rich Cd isotopes
• Continuum Coupling and Single-Nucleon Overlap Integrals
• New magic number for neutron rich Sn isotopes
• Structures and decay properties of extremely proton-rich nuclei ${}^{11,12}$O
• Emergence of the N=16 shell gap in 21O
• Novel and simple description for a smooth transition from $\alpha$-cluster wave functions to $jj$-coupling shell model wave functions
• Spectroscopy of ${}^{26}$F to probe proton-neutron forces close to the drip line
• Challenges in Nuclear Structure Theory
• Pseudospin, supersymmetry and the shell structure of atomic nuclei
• Proton decays in ${}^{16}$Ne and ${}^{18}$Mg and isospin-symmetry breaking in carbon isotopes and isotones
• Gamow Shell Model description of Li isotopes and their mirror partners
• Nucleon-nucleon correlations in the extreme oxygen isotopes
• Observation of the near-threshold intruder $0^{-}$ resonance in ${}^{12}$Be
• Improved microscopic-macroscopic approach incorporating the effects of continuum states
• Continuum and Symmetry-Conserving Effects in Drip-line Nuclei Using Finite-range Forces
• Search for excited states in ${}^{25}$O
• Hypernuclei - the next decade
• A study of self-consistent Hartree-Fock plus Bardeen-Cooper-Schrieffer calculations with finite-range interactions
• Clusters in Light Nuclei
• Shell-structure fingerprints of tensor interaction
• Broad resonances and beta-decay
• Universal Effective Charges in the $sd$ and $fp$ Shells
• Cluster radioactivity in ${}^{114}$Ba in the HFB theory
• Threshold Bound States
• Gamow shell model predictions for six-proton unbound nucleus ${}^{20}$Si
• Gamow shell model study of the 17Ne(p, p) reaction and of isospin symmetry breaking in 18Na
• Towards the continuum coupling in nuclear lattice effective field theory I: A three-particle model
• Coalescence of two exceptional points in the anti-hermitian 3-level pairing model
• Models for Pairing Phenomena