Linear response of light deformed nuclei investigated by self-consistent quasiparticle random-phase approximation

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.064307· OSTI ID:21388582

Losa, C; Doessing, T ^[1]; Pastore, A ^[2]; Vigezzi, E ^[3]; Broglia, R A ^[1]

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1. Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen O (Denmark)
2. Department of Physics, Post Office Box 35 (YFL), FI-40014 University of Jyvaeskylae (Finland)
3. INFN, Sezione di Milano, via Celoria 16, I-20133 Milano (Italy)

We present a calculation of the properties of vibrational states in deformed, axially-symmetric even-even nuclei, within the framework of a fully self-consistent quasiparticle random phase approximation (QRPA). The same Skyrme energy density and density-dependent pairing functionals are used to calculate the mean field and the residual interaction in the particle-hole and particle-particle channels. We have tested our software in the case of spherical nuclei against fully self-consistent calculations published in the literature, finding excellent agreement. We investigate the consequences of neglecting the spin-orbit and Coulomb residual interactions in QRPA. Furthermore we discuss the improvement obtained in the QRPA result associated with the removal of spurious modes. Isoscalar and isovector responses in the deformed {sup 24-26}Mg, {sup 34}Mg isotopes are presented and compared to experimental findings.

• OSTI ID: 21388582
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 6; Other Information: DOI: 10.1103/PhysRevC.81.064307; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
AXIAL SYMMETRY
COMPUTERIZED SIMULATION
DEFORMED NUCLEI
DENSITY
ENERGY DENSITY
EVEN-EVEN NUCLEI
ISOVECTORS
LIGHT NUCLEI
MAGNESIUM 24
MAGNESIUM 25
MAGNESIUM 26
MAGNESIUM 34
MEAN-FIELD THEORY
RANDOM PHASE APPROXIMATION
RESIDUAL INTERACTIONS
SKYRME POTENTIAL
SPHERICAL CONFIGURATION
SPIN
VIBRATIONAL STATES
ALKALINE EARTH ISOTOPES
ANGULAR MOMENTUM
APPROXIMATIONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CALCULATION METHODS
CONFIGURATION
ENERGY LEVELS
EVEN-ODD NUCLEI
EXCITED STATES
INTERACTIONS
ISOTOPES
MAGNESIUM ISOTOPES
NUCLEI
NUCLEON-NUCLEON POTENTIAL
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
POTENTIALS
RADIOISOTOPES
SIMULATION
STABLE ISOTOPES
SYMMETRY
TENSORS
VECTORS