Core polarization for the electric quadrupole moment of neutron-rich aluminum isotopes

Journal Article · Fri May 15 00:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.79.054303· OSTI ID:21289888

Yoshida, Kenichi ^[1]

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1. RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198 (Japan)

The core polarization effects for the electric quadrupole moments of the neutron-rich {sup 31}Al, {sup 33}Al, and {sup 35}Al isotopes in the vicinity of the island of inversion are investigated by means of the microscopic particle-vibration coupling model in which the Skyrme Hartee-Fock-Bogoliubov and quasiparticle random-phase approximations are used to calculate the single-quasiparticle wave functions and the excitation modes. It is found that the polarization charge for the proton 1d{sub 5/2} hole state in {sup 33}Al is quite sensitive to coupling to the neutrons in the pf-shell associated with the pairing correlations and that the polarization charge in {sup 35}Al becomes larger due to the stronger collectivity of the low-lying quadrupole vibrational mode in the neighboring {sup 36}Si nucleus.

• OSTI ID: 21289888
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 79, Issue 5; Other Information: DOI: 10.1103/PhysRevC.79.054303; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 31
ALUMINIUM 33
ALUMINIUM 35
COMPUTERIZED SIMULATION
CORRELATIONS
COUPLING
EXCITATION
HARTREE-FOCK-BOGOLYUBOV THEORY
HOLES
NEUTRON-RICH ISOTOPES
PARTICLES
POLARIZATION
PROTONS
QUADRUPOLE MOMENTS
QUASI PARTICLES
RANDOM PHASE APPROXIMATION
SHELLS
SILICON 36
SKYRME POTENTIAL
WAVE FUNCTIONS