On-resonance deformation effect measurements: A probe of order within chaos in the nucleus

Journal Article · Sun Feb 01 04:00:00 EST 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.57.648· OSTI ID:568368

Davis, E D ^[1]; Gould, C R ^[2]; Gould, C R ^[3]

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1. Physics Department, Kuwait University, P.O. Box 5969, Safat (Kuwait)
2. Physics Department, North Carolina State University, Raleigh, North Carolina 27695-8202 (United States)
3. Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708-0308 (United States)

The statistics of on-resonance measurements of the deformation effect cross section {sigma}{sub 02} in unpolarized neutron transmission through an aligned {sup 165}Ho target is discussed. Under the standard Porter-Thomas assumption about reduced partial width amplitudes, the sign of {sigma}{sub 02} is random at s-wave resonances with d-wave admixtures. Motivated by the observation of sign correlations in epithermal parity-violation studies, conditions under which a doorway state will give rise to {sigma}{sub 02}{close_quote}s of nonrandom sign are identified. Oblate shape isomers lying at excitation energies in the isolated resonance regime could meet these conditions. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 568368
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 57; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CORRELATIONS
CROSS SECTIONS
D WAVES
DEFORMATION
DEFORMED NUCLEI
EXCITATION
FLUCTUATIONS
HOLMIUM 165 TARGET
ISOMERS
NEUTRON REACTIONS
PARTIAL WAVES
RESONANCE
S WAVES
SHAPE
STATISTICAL MODELS
TRANSMISSION
WIDTH