Fusability and fissionability in 86Kr-induced reactions near and below the fusion barrier

Reisdorf, W.; Heßberger, F. P.; Hildenbrand, K. D.; Hofmann, S.; Münzenberg, G.; Schmidt, Karl‐Heinz; Schneider, W.F.W.; Sümmerer, K.; Wirth, G.; Kratz, J. V.; Schütt, K.-H.; Sahm, C. C.

doi:10.1016/0375-9474(85)90296-9

Cited by 82 publications

(52 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is generally thought that for systems with the charge number Z CN of compound nuclei smaller than about 60, the fission barrier is high enough to make fission an improbable decay mode at incident energies close to the fusion barrier [12,46]. Thus for these reactions, the evaporation residual cross section σ ER approximately equal to the fusion cross section We find that the results from the microscopic dynamics model and those from the static model ETF2 are close to each other.…”

Section: Improved Quantum Molecular Dynamics Modelsupporting

confidence: 62%

Fusion and quasi-fission dynamics in nearly-symmetric reactions

Wang

Zhao

2015

Sci. China Phys. Mech. Astron.

View full text Add to dashboard Cite

Some nearly-symmetric fusion reactions are systematically investigated with the improved quantum molecular dynamics (ImQMD) model. By introducing two-body inelastic scattering in the Fermi constraint procedure, the stability of an individual nucleus and the description of fusion cross sections at energies near the Coulomb barrier can be further improved. Simultaneously, the quasi-fission process in 154 Sm+ 160 Gd is also investigated with the microscopic dynamics model for the first time. We find that at energies above the Bass barrier, the fusion probability is smaller than 10 −5 for this reaction, and the nuclear contact-time is generally smaller than 1500 fm/c. From the central collisions of Sm+Gd, the neutron-rich fragments such as 164,165 Gd, 192 W can be produced in the ImQMD simulations, which implies that the quasi-fission reaction could be an alternative way to synthesize new neutron-rich heavy nuclei. * Electronic address: wangning@gxnu.edu.cn

show abstract

Section: Improved Quantum Molecular Dynamics Modelsupporting

confidence: 62%

Fusion and quasi-fission dynamics in nearly-symmetric reactions

Wang

Zhao

2015

Sci. China Phys. Mech. Astron.

View full text Add to dashboard Cite

show abstract

“…2 have been implemented in the evaporation code HIVAP which has been used in some earlier work [18,28,29]. The code follows the evaporation chain through all the steps allowing for neutron, proton, alpha and gamma emission in addition to (multiple chance) fission.…”

Section: Resultsmentioning

confidence: 99%

How well do we understand the synthesis of heavy elements by heavy-ion induced fusion?

Reisdorf¹,

Schädel²

1992

Z. Physik A - Hadrons and Nuclei

Self Cite

169

View full text Add to dashboard Cite

Experimental cross sections to synthesize heavy ion induced fusion reactions are confronted with calculations using the conventional picture of complete fusion after passing the barrier plus statistical deexcitation after complete equilibration. The sensitivity of the calculations to some of the parameters is demonstrated. Despite this sensitivity, a single parameter set is found that reproduces well the large body of data from experiments using actinide targets. By comparison, for the more symmetric entrance channels using targets around 2~we find a fusion hindrance that increases steeply with increasing compound nuclear charge. Predictions for a few reactions of future interest for the synthesis of heavy elements are also presented.

show abstract

“…It is generally thought that for systems with the compound-nuclear charge number Z CN smaller than about 60, the fission barrier is high enough to make fission an improbable decay mode at incident energies close to the fusion barrier [18]. Thus for these reactions, σ ER ≃ σ fus ≃ σ cap holds at near-barrier energies.…”

Section: Introductionmentioning

confidence: 99%

“…With the analytical MWS potential, both the fusion barrier and the fission barrier of a reaction system will be consistently studied. For calculation of W sur , the well known standard statistical model (with HIVAP code [5,18,20]) is used. Then, the evaporation residue cross sections of a series of fusion-fission reactions will be investigated for a systematic test of the model and refining the parameters.…”

Section: Introductionmentioning

confidence: 99%