Dynamics of nuclear fluid. VII. Isovector, spin-vector, and spin-isovector giant multipole resonances as elastic vibrations

Journal Article · Sat May 01 00:00:00 EDT 1982 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.25.2787· OSTI ID:5093705

Wong, C

Previously, we studied the isoscalar giant resonances as the elastic vibration of a nucleus, the peculiar properties of elasticity being a manifestation of the quantum stress tensor. We examine here the other types of collective vibrations involving elastic spin and isospin waves. Relevant electric and magnetic multipole states for the isovector, the spin vector, and the spin-isovector modes are determined. We find that for a given electric or magnetic state with multipolarity l different from zero, the lowest eigenenergies for the different modes of giant resonances (isoscalar, isovector, spin-vector, and spin-isovector) are approximately degenerate. On the other hand, the l/sup ..pi../ = 0/sup +/ states depend on the nuclear incompressibility and the symmetry energy coefficients. Their eigenenergies can be quite different. The theoretical eigenenergies for the giant isovector electric multipole states compare well with experimental data.

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• OSTI ID: 5093705
• Journal Information: Phys. Rev. C; (United States), Vol. 25:5
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GIANT RESONANCE
MULTIPOLARITY
EIGENSTATES
FLUID MECHANICS
HARTREE-FOCK METHOD
ISOSPIN
ISOVECTORS
NUCLEAR MODELS
SPIN
VIBRATIONAL STATES
ANGULAR MOMENTUM
ENERGY LEVELS
EXCITED STATES
MATHEMATICAL MODELS
MECHANICS
PARTICLE PROPERTIES
RESONANCE
TENSORS
VECTORS
653001* - Nuclear Theory- Nuclear Structure
Moments
Spin
& Models
653007 - Nuclear Theory- Nuclear Models- (-1987)