Statistical and nonstatistical neutron decay of the giant electric dipole resonance of sup 208 Pb

Journal Article · Sat Jun 01 00:00:00 EDT 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.R2470· OSTI ID:5662965

Alarcon, R; Cole, P L; Dale, D S; Debevec, P T; Morford, L J ^[1]

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1. Nuclear Physics Laboratory, University of Illinois at Urbana-Champaign, Champaign, IL (USA) Department of Physics, University of Illinois at Urbana-Champaign, Champaign, IL (USA)

The neutron decay of the giant electric dipole resonance of {sup 208}Pb has been determined by a measurement of the differential cross section, {ital d}{sigma}({ital E}{sub {gamma}},{ital E}{sub {ital n}})/{ital dE}{sub {ital n}} of the {sup 208}Pb({gamma},{ital n}) reaction for 20 contiguous photon energy bands between 11.2 and 15.7 MeV. The statistical component of the decay was calculated in the Hauser-Feshbach formalism. A nonstatistical component of the decay to low-lying hole states is unambiguously identified. The magnitude of this component is strongly energy dependent.

• OSTI ID: 5662965
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CROSS SECTIONS
DECAY
DIFFERENTIAL CROSS SECTIONS
DIPOLE MOMENTS
DISTRIBUTION
ELECTRIC DIPOLE MOMENTS
ELECTRIC MOMENTS
ENERGY LEVELS
ENERGY RANGE
EVEN-ODD NUCLEI
GIANT RESONANCE
HAUSER-FESHBACH THEORY
HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 207
LEAD 208 TARGET
LEAD ISOTOPES
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 10-100
MILLISEC LIVING RADIOISOTOPES
NEUTRON SPECTRA
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
PHOTONUCLEAR REACTIONS
RADIOISOTOPES
RESONANCE
SECONDS LIVING RADIOISOTOPES
SPECTRA
SPECTROMETERS
STABLE ISOTOPES
STATISTICAL MODELS
TARGETS
TIME-OF-FLIGHT SPECTROMETERS