Evidence of complete fusion in the subbarrier {sup 16}O+{sup 238}U reaction

Journal Article · Tue Aug 15 04:00:00 EDT 2006 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778806080187· OSTI ID:21075999

Nishio, K; Ikezoe, H; Asai, M; Tsukada, K; Mitsuoka, S; Tsuruta, K; Satou, K; Lin, C J ^[1]; Ohsawa, T ^[2]

---

1. Japan Atomic Energy Agency (Japan)
2. Kinki University, Department of Electrical and Electronic Engineering, School of Science and Engineering (Japan)

Evaporation residue cross sections in the {sup 16}O+{sup 238}U reaction were measured for the energy range from above-to extreme subbarrier. We used a He-gas-jet system to transport the fusion products, and the {alpha} decay of the evaporation residues was measured by using a rotating wheel system. The measured cross sections for {sup 248,249,250}Fm are reproduced by a statistical model calculation, for which partial cross sections are calculated by a coupled-channel model taking into account the prolate deformation of {sup 238}U. We conclude that complete fusion is the main process in the subbarrier energy region, and quasifission is not an important channel.

• OSTI ID: 21075999
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 8 Vol. 69; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
COUPLED CHANNEL THEORY
CROSS SECTIONS
DEFORMATION
DEFORMED NUCLEI
ENERGY RANGE
EVAPORATION
FERMIUM 248
FERMIUM 249
FERMIUM 250
FISSION PRODUCTS
NUCLEAR REACTIONS
OXYGEN 16
QUASI-FISSION
STATISTICAL MODELS
URANIUM 238