Dynamics of collective excitations in sup 190,192 Os and sup 194 Pt observed by 8 MeV neutron scattering

Journal Article · Fri Dec 01 04:00:00 EST 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.2527· OSTI ID:7163001

Clegg, T B; Haouat, G; Delaroche, J P; Lagrange, C; Chardine, J ^[1]; McEllistrem, M T; Hicks, S E; Shen, G R ^[2]

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1. Centre d'Etudes de Bruyeres-le-Chatel, 91680, Bruyeres-le-Chatel, (France)
2. Department of Physics and Astronomy The University of Kentucky, Lexington, Kentucky 40506 (USA)

Differential cross sections have been measured for the scattering of 8 MeV neutrons from {sup 190,192}Os and {sup 194}Pt. These measurements have been combined with information from other neutron scattering experiments to fix accurately the electric quadrupole and octupole excitations strengths for low-lying levels. Comparison of this information with electromagnetic excitations for these same nuclei elucidates the rapidly evolving behavior of low-lying collective structures in Pt and Os nuclei. The {sup 194}Pt excitations are those of a nucleus with a potential energy surface very soft to nonaxial deformations. On the other hand, the scattering cross sections for excited levels of {sup 190}Os show evolution of excitations toward those of a nucleus vibrating about a prolate equilibrium shape.

• OSTI ID: 7163001
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651920* -- Nuclear Properties & Reactions
A=190-219
Experimental
653001 -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
COLLECTIVE MODEL
CROSS SECTIONS
DATA
DEFORMATION
DIFFERENTIAL CROSS SECTIONS
E2-TRANSITIONS
E3-TRANSITIONS
ELECTROMAGNETIC FIELDS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
HADRON REACTIONS
HEAVY NUCLEI
INELASTIC SCATTERING
INFORMATION
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 01-10
MINUTES LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NEUTRON REACTIONS
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
OSMIUM 190
OSMIUM 190 TARGET
OSMIUM 192
OSMIUM 192 TARGET
OSMIUM ISOTOPES
PLATINUM 194
PLATINUM 194 TARGET
PLATINUM ISOTOPES
RADIOISOTOPES
SCATTERING
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
TARGETS