Subbarrier fusion of the oxygen isotopes

Thesis/Dissertation · Wed Jan 01 04:00:00 EST 1986

OSTI ID:6843821

Ponisch, V

The subbarrier fusion process is studied for systems involving oxygen isotopes. A one-channel incoming wave boundary condition (IWBVC) calculation gives an excellent fit to fusion cross section data for /sup 16/O + /sup 16/O. An IWBC coupled channels calculation for /sup 17/O + /sup 16/O that includes inelastic excitations as well as one-neutron transfer with form factors calculated in a consistent single-particle framework reproduces the subbarrier enhancement down to four fifths the barrier height, but not below that. The calculation does not invoke the adiabatic approximation, which would create non-unitarity in the coupled channels equations. The measured subbarrier fusion cross section for /sup 18/O + /sup 16/O is well reproduced by an IWBC coupled channels calculation with two-neutron transfer, but the calculation disagrees with the above-barrier data.

• Research Organization: California Inst. of Tech., Pasadena (USA)
• OSTI ID: 6843821
• Country of Publication: United States
• Language: English

Related Subjects

653003* -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
COUPLED CHANNEL THEORY
CROSS SECTIONS
DATA
ENERGY RANGE
HEAVY ION FUSION REACTIONS
HEAVY ION REACTIONS
INFORMATION
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUMERICAL DATA
OXYGEN 16 REACTIONS
OXYGEN 16 TARGET
OXYGEN 17 REACTIONS
OXYGEN 18 REACTIONS
TARGETS
THEORETICAL DATA