Study of complete fusion reactions leading to the production of heavy and superheavy nuclei

Journal Article · Tue Nov 16 04:00:00 EST 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1301815· OSTI ID:21207574

Sagaidak, Roman N ^[1]

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1. Flerov Laboratory of Nuclear Reactions, JINR, 141980 Dubna, Moscow reg. (Russian Federation)

Cross section values for heavy evaporation residues (ER) produced in complete fusion reactions induced by heavy ions on spherical and deformed target nuclei are analyzed in the framework of barrier penetration and statistical model approximations. For the reactions leading to Rn-Pa nuclei, a strong influence of the entrance channel on the measured cross section values is observed for nearly symmetric projectile-target combinations. In order to reproduce the observed excitation functions in such combinations we had to introduce the quantity of fusion probability. Considering the asymmetric reactions leading to the heaviest nuclei we also had to use the fusion probability to reproduce the cross section values obtained for cold fusion reactions induced by {sup 50}Ti and heavier projectiles on the Pb and Bi target nuclei, and also the values obtained for hot fusion reactions induced by {sup 34}S on actinide target nuclei. The scaling of fusion probabilities derived for both the reactions allowed us to predict the values of cross sections for superheavy elements (SHE) produced in the {sup 48}Ca induced reactions on actinide target nuclei and in the cold fusion reactions induced by the Zn and heavier projectiles.

• OSTI ID: 21207574
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 495; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
APPROXIMATIONS
ASYMMETRY
BISMUTH 209 TARGET
CALCIUM 48 REACTIONS
COLD FUSION
EVAPORATION MODEL
EXCITATION FUNCTIONS
FISSION
FISSION PRODUCTS
HEAVY ION FUSION REACTIONS
HEAVY NUCLEI
LEAD 208 TARGET
STATISTICAL MODELS
SULFUR 34 REACTIONS
TITANIUM 50 REACTIONS
TRANSACTINIDE ELEMENTS