Isovector admixtures in the isoscalar giant quadrupole resonance in /sup 208/Pb

Journal Article · Wed May 01 04:00:00 EDT 1985 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.31.1950· OSTI ID:5772822

Wambach, J

A microscopic estimate of the inelastic cross section ratio sigma(..pi../sup -/)/sigma(..pi../sup +/) to the isoscalar giant quadrupole resonance in /sup 208/Pb is given. Based on an extended random phase approximation including 1p1h as well as 2p2h excitations we conclude that the calculated ratio is in agreement with the hydrodynamical scaling for the transition densities deltarho/sub n/ = N/Zdeltarho/sub p/. For the surface quadrupole vibration however the theory predicts a deviation from the hydrodynamical estimate.

• Research Organization: Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
• OSTI ID: 5772822
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 31:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
EVEN-EVEN NUCLEI
GIANT RESONANCE
HADRON REACTIONS
HEAVY NUCLEI
HYDRODYNAMIC MODEL
INELASTIC SCATTERING
ISOTOPES
ISOVECTORS
LEAD 208
LEAD 208 TARGET
LEAD ISOTOPES
MATHEMATICAL MODELS
MESON REACTIONS
NUCLEAR REACTIONS
NUCLEI
PARTICLE MODELS
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
QUADRUPOLE MOMENTS
RANDOM PHASE APPROXIMATION
RESONANCE
SCATTERING
STABLE ISOTOPES
STATISTICAL MODELS
TARGETS
TENSORS
THERMODYNAMIC MODEL
VECTORS