Reaction dynamics in {sup 63}Cu + Au at 35 AMeV

Journal Article · Fri Oct 01 04:00:00 EDT 1993 · Bulletin of the American Physical Society

OSTI ID:387234

Wada, R; Hagel, K; Tezkratt, R ^[1]

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1. and others

The reaction mechanisms of 35 AMeV {sup 63}Cu+Au and the decay properties of hot nuclei produced in these reactions are studied using charged particle detectors and the Texas A&M 4{pi} neutron ball. A significant cross section of heavy fragments with mass A {approx} 150 and V = 0.5 - 1.5 cm/ns is observed. These are also associated with a high neutron multiplicity. The data suggest that these are the residues from primary hot nuclei with A {approx} 230-250 and Ex {approx} 1-1.5 GeV. The dynamical hindrance for the fission decay channel at high excitation energy plays an important role in producing the observed heavy residues. Without the dynamical delay, no fragments with A {ge} 150 and V {ge} 0.5 cm/ns are produced. Model simulations for fusion-evaporation or fusion-fission followed by evaporation have been made. Possible deeply inelastic processes are also examined.

• OSTI ID: 387234
• Report Number(s): CONF-931044--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 9 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
COPPER 63 REACTIONS
CROSS SECTIONS
FISSION FRAGMENTS
GOLD 197 TARGET
HEAVY ION FUSION REACTIONS
MULTIPLICITY