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Spin distributions in near-barrier and sub-barrier fusion reactions

Conference ·
OSTI ID:5841909
A new study of the mean-square value of the spin distribution of compound nuclei, exploiting the sensitivity of fission fragment angular distributions to the compound nucleus spin distribution, is described. The technique is extended to low sub-barrier and near barrier energies. The spin distribution for two entrance channels involving deformed nuclei and leading to the compound nucleus /sup 248/Cf and the /sup 16/O + /sup 208/Pb system, where the target nucleus is spherical, are studied. Comparisons are made of mean spin values and excitation functions computed using experimental data with model predictions. The author concludes that models which are successful in accounting for the shapes of sub-barrier excitation functions fail to reproduce the mean-square spin values at the lowest bombarding energies. 26 refs., 8 figs. (DWL)
Research Organization:
Washington Univ., Seattle (USA). Dept. of Physiology and Biophysics
DOE Contract Number:
AC06-81ER40048
OSTI ID:
5841909
Report Number(s):
DOE/ER/40048-154-L6; CONF-860396-8; ON: DE86010453
Country of Publication:
United States
Language:
English

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Related Subjects

651625 -- Nuclear Properties & Reactions
A=59-89
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651825 -- Nuclear Properties & Reactions
A=150-189
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651925* -- Nuclear Properties & Reactions
A=190-219
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
COUPLED CHANNEL THEORY
CROSS SECTIONS
DEFORMED NUCLEI
DISTRIBUTION
EXCITATION FUNCTIONS
FISSION FRAGMENTS
FUNCTIONS
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
LEAD 208 TARGET
MATHEMATICAL MODELS
NUCLEAR FRAGMENTS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OXYGEN 16 REACTIONS
PARTICLE PROPERTIES
SAMARIUM 154 TARGET
SELENIUM 80 REACTIONS
SELENIUM 80 TARGET
SPIN
TARGETS
THORIUM 232 TARGET
URANIUM 236 TARGET