Spin distributions in heavy ion fusion at and below the Coulomb barrier

Conference · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5990168

Back, B B; Gil, S; Lazzarini, A; Lock, D K; Ray, A; Vandenbosch, R

The total cross section for compound nucleus formation at energies near the Coulomb barrier depends sensitively on the penetrability of the ion-ion potential. Many analyses of fusion data have relied on the parabolic approximation to account for the barrier penetration. There has been a great amount of interest recently in studying the details of fusion at and near the barrier. The penetrability of the barrier not only affects the energy dependence of the capture cross section, but the angular momentum dependence of the penetrability also determines the spin distribution brought into the compound nucleus during the capture. We have studied the energy dependence of the cross section and ..gamma.. multiplicity for the reactions ..cap alpha.., /sup 12/C, and /sup 16/O + /sup 154/Sm to determine the average properties of the spin distribution brought into the compound nucleus by fusion. Results are presented and discussed. (WHK)

• Research Organization: Washington Univ., Seattle (USA). Nuclear Physics Lab.
• DOE Contract Number: AC06-81ER40048
• OSTI ID: 5990168
• Report Number(s): DOE/ER/40048-101-L4; CONF-8406156-6; ON: DE85007817
• Country of Publication: United States
• Language: English

Related Subjects

651825* -- Nuclear Properties & Reactions
A=150-189
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
ANGULAR MOMENTUM
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
COMPOUND-NUCLEUS REACTIONS
COULOMB ENERGY
CROSS SECTIONS
DATA
ENERGY
ENERGY DEPENDENCE
EXPERIMENTAL DATA
FUSION REACTIONS
GAMMA SPECTRA
HEAVY ION REACTIONS
INFORMATION
MULTIPLICITY
NUCLEAR REACTIONS
NUMERICAL DATA
OXYGEN 16 TARGET
PARTICLE PROPERTIES
SAMARIUM 154 TARGET
SPECTRA
SPIN
TARGETS