Neutron decay from the giant resonance region in /sup 208/Pb

Journal Article · Tue Jan 31 23:00:00 EST 1989 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.39.725· OSTI ID:6530451

Bracco, A; Beene, J R; Bertrand, F E; Halbert, M L; Hensley, D C; Auble, R L; Horen, D J; Robinson, R L; Sayer, R O

The neutron decay of the giant multipole resonance region from 9 to 15 MeV of excitation energy in /sup 208/Pb has been studied. Neutron branching ratios for the decay to the ground state or to the low-lying excited states of /sup 207/Pb were measured as a function of the excitation energy of /sup 208/Pb and compared to Hauser-Feshbach calculations. While the neutron branching ratios from the isoscalar quadrupole resonance are reproduced by the calculations, the ratios from excitation energies above 12.5 MeV show a large excess with respect to the statistical predictions.

• Research Organization: Universita degli Studi di Milano, Dipartimento di Fisica, 20133 Milano, Italy
• OSTI ID: 6530451
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 39:2; 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
ANGULAR DISTRIBUTION
BARYONS
BRANCHING RATIO
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DECAY
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY DEPENDENCE
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
FERMIONS
GAMMA RADIATION
GIANT RESONANCE
HADRONS
HAUSER-FESHBACH THEORY
HEAVY ION REACTIONS
HEAVY NUCLEI
INELASTIC SCATTERING
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD 207
LEAD 208
LEAD 208 TARGET
LEAD ISOTOPES
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 100-1000
NEUTRONS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEI
NUCLEONS
OXYGEN 17 REACTIONS
QUADRUPOLE MOMENTS
RADIATIONS
RADIOISOTOPES
RESONANCE
SCATTERING
SECONDS LIVING RADIOISOTOPES
STABLE ISOTOPES
STATISTICAL MODELS
TARGETS