Fragmentation of the low-energy octupole resonance in /sup 48/Ca, /sup 90/Zr, and /sup 208/Pb

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

DOI:https://doi.org/10.1103/PhysRevC.32.425· OSTI ID:5400258

Fujita, Y; Fujiwara, M; Morinobu, S; Katayama, I; Yamazaki, T; Itahashi, T; Ikegami, H; Hayakawa, S I

The fine structure of the low-energy octupole resonance was studied for /sup 48/Ca, /sup 90/Zr, and /sup 208/Pb by proton inelastic scattering at E/sub p/ = 65 MeV. The low-energy octupole resonance was composed of many discrete levels of L = 3 states. The total energy-weighted sum rule fraction of more than 10% was found in every nucleus. Especially in /sup 208/Pb, the energy-weighted sum rule fraction amounted to 15%. The strength was finely fragmented in /sup 90/Zr, but less fragmented in /sup 208/Pb. It is suggested that the ''degree of fragmentation'' is correlated with the excitation energy and the distribution of the low-lying quadrupole phonon states.

• Research Organization: Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567, Japan
• OSTI ID: 5400258
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 32:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR MOMENTUM
BARYON REACTIONS
CALCIUM 48
CALCIUM 48 TARGET
CALCIUM ISOTOPES
CHARGED-PARTICLE REACTIONS
COLLECTIVE MODEL
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ENERGY LEVELS
ENERGY RANGE
EQUATIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FINE STRUCTURE
FRAGMENTATION
GIANT RESONANCE
HADRON REACTIONS
HEAVY NUCLEI
INELASTIC SCATTERING
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 208
LEAD 208 TARGET
LEAD ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
PARTICLE-HOLE MODEL
PROTON REACTIONS
RADIOISOTOPES
RESONANCE
SCATTERING
SPIN
STABLE ISOTOPES
SUM RULES
TARGETS
ZIRCONIUM 90
ZIRCONIUM 90 TARGET
ZIRCONIUM ISOTOPES