Compound and precompound effects in photon decay of the giant dipole resonance

Journal Article · Sat Mar 31 23:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.R1332· OSTI ID:7001401

Beene, J R; Bertrand, F E; Horen, D J; Lisantti, J L; Halbert, M L; Hensley, D C ^[1]; Mittig, W; Schutz, Y ^[2]; Barrette, J; Alamanos, N; Auger, F; Fernandez, B; Gillibert, A ^[3]; Haas, B; Vivien, J P ^[4]; Nathan, A M ^[5]

---

1. Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (USA)
2. Grand Accelerateur National d'Ions Lourds, 14021 Caen CEDEX (France)
3. Departement de Physique Nucleaire/Basse Energie, Centre d'Etudes Nucleaires de Saclay, 91191 Gif-sur-Yvette CEDEX (France)
4. Centre de Recherches Nucleaires, 67037 Strasbourg CEDEX (France)
5. University of Illinois, Champaign, Illinois 61820 (USA)

We have investigated the excitation and ground-state photon decay of the giant resonance region in {sup 208}Pb and {sup 209}Bi due to inelastic scattering of 84 MeV/nucleon {sup 17}O. The inelastic spectra are dominated by the isovector giant dipole resonance. The spectra of {sup 208}Pb and {sup 209}Bi are almost identical in the giant resonance region. We conclude that the resonance strength functions are very nearly the same for these nuclei. Significant differences are, however, found in the distribution of ground-state decay photons from the two nuclei. These differences appear to be due to a large contribution from decay of fully damped compound states in {sup 208}Pb.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7001401
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651920* -- Nuclear Properties & Reactions
A=190-219
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BISMUTH 209
BISMUTH 209 TARGET
BISMUTH ISOTOPES
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
DATA
DECAY
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FUNCTIONS
GAMMA DECAY
GEV RANGE
GEV RANGE 01-10
GIANT RESONANCE
GROUND STATES
HEAVY ION REACTIONS
HEAVY NUCLEI
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LEAD 208
LEAD 208 TARGET
LEAD ISOTOPES
NUCLEAR DECAY
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OXYGEN 17 REACTIONS
RESONANCE
SCATTERING
STABLE ISOTOPES
STRENGTH FUNCTIONS
TARGETS