Signature of non-compound-nucleus fission at sub-barrier energies

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.50.1717· OSTI ID:7005809

Liu, Z; Zhang, H; Xu, J; Qian, X; Qiao, Y; Lin, C; Xu, K ^[1]

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1. China Institute of Atomic Energy, Beijing 102413 (China)

We have extracted the experimental [ital J][sub eff] values from fission fragment angular distributions for the systems of [sup 16]O+[sup 232]Th, [sup 19]F+[sup 232]Th, and [sup 16]O+[sup 238]U at near- and sub-barrier energies. The [ital J][sub 0]/[ital J][sub eff] values for the cases of the above reactions and the heavy-ion reactions with projectiles heavier than [ital A]=24 show same systematic trend when plotted as a function of mean-square angular momentum of the fissioning nucleus. This observation leads us to the conjecture that the systematic trend of [ital J][sub 0]/[ital J][sub eff] bears the signature of non-compound-nucleus fission for the heavy-ion reactions with lighter projectiles at near- and sub-barrier energies.

• OSTI ID: 7005809
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:3; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

663300 -- Nuclear Reactions & Scattering
General-- (1992-)
663470* -- Fission-- (1992-)
663590 -- Nuclear Mass Ranges-- A=220 & Above-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
COMPOUND NUCLEI
DISTRIBUTION
FISSION
FISSION FRAGMENTS
FLUORINE 19 REACTIONS
HEAVY ION REACTIONS
NUCLEAR FRAGMENTS
NUCLEAR REACTIONS
OXYGEN 16 REACTIONS
TARGETS
THORIUM 232 TARGET
URANIUM 232 TARGET