High-energy target excitations in heavy ion inelastic scattering

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.43.R12· OSTI ID:5987731

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

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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)

The high-energy continuum from inelastic scattering of 84 MeV/nucleon {sup 17}O by {sup 208}Pb was studied by measuring {sup 17}O--{gamma}-ray coincidences. The particle spectra in coincidence with {gamma} rays above {similar to}1 MeV show structures up to 45-MeV excitation energy that can be explained in terms of the statistical decay of the highly excited target nucleus. The observation in the {gamma}-ray spectrum of the giant dipole resonance built on excited states in {sup 208}Pb confirms that the continuum up to {similar to}60-MeV excitation energy is dominated by the excitation of {sup 208}Pb and offers the unique possibility of detailed studies of the giant dipole resonance as a function of excitation energy decoupled from the influence of angular momentum.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5987731
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 43:1; 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
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
ENERGY RANGE
EVEN-EVEN NUCLEI
GAMMA SPECTRA
GEV RANGE
GEV RANGE 01-10
GIANT RESONANCE
HEAVY ION REACTIONS
HEAVY NUCLEI
INELASTIC SCATTERING
ISOTOPES
LEAD 208
LEAD 208 TARGET
LEAD ISOTOPES
NUCLEAR REACTIONS
NUCLEI
OXYGEN 16 REACTIONS
RESONANCE
SCATTERING
SPECTRA
STABLE ISOTOPES
TARGETS