Application of statistical methods for analysis of heavy-ion reactions in the framework of a dinuclear system model

Zubov, A. S.; Adamian, G. G.; Antonenko, N. V.

doi:10.1134/s1063779609060057

Cited by 36 publications

(14 citation statements)

References 109 publications

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“…This approach to describing the process of complete fusion of nuclei was called the dinuclear sys tem concept (DNS concept) [9][10][11]. Based on this concept, a model of nuclear fusion (DNS model) was proposed and developed that made it possible for the first time to take into account the competition between the complete fusion and quasifission, to explain a large set of experimental data, and to make a number of successful predictions [12][13][14][15][16][17][18][19].…”

Section: Dinuclear Systems In Nuclear Reactionsmentioning

confidence: 99%

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Dinuclear systems in complete fusion reactions

2014

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Formation and evolution of dinuclear systems in reactions of complete fusion are considered. Based on the dinuclear system concept, the process of compound nucleus formation is studied. Arguments confirming the validity of this concept are given. The main problems of describing the complete fusion in adi abatic approximation are listed. Calculations of evaporation residue cross sections in complete fusion reac tions leading to formation of superheavy nuclei are shown. Isotopic trends of the cross sections of heavy nuclei formation in complete fusion reactions are considered.

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Section: Dinuclear Systems In Nuclear Reactionsmentioning

confidence: 99%

“…A limit of complete sticking comes to be in the DNS evolving to the compound nucleus, therefore the centrifugal potential V r (R) is as follows: (12) where j i = 2mA i are the rigid body moments of inertia of the DNS nuclei.…”

Section: Complete Fusion Of Massive Nuclei: Fusion Barrier Of New Typementioning

confidence: 99%

Dinuclear systems in complete fusion reactions

2014

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“…This concept was later used to study the competition between complete fusion and quasi-fission and to calculate the fusion probability in fusion reactions [31][32][33]. Based on the DNS concept, several models have been developed for the study of the synthesis mechanism of SHN (see [34][35][36][37] and references therein).…”

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confidence: 99%

Theoretical study of the synthesis of superheavy nuclei withZ=119and 120 in heavy-ion reactions with trans-uranium targets

et al. 2012

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“…Among all of them, the most important is to get accurate information about the fission barrier (including the height and width or, more precisely, the shape of the fission barrier) [4,5], in which even a 1 MeV difference could cause several orders of magnitude difference in the fission half-life. Therefore, to some extent, it determines the stability of the heaviest and superheavy nuclei (SHNs), and plays a crucial role in exploring the "island of stability" of SHNs [6,7].…”

Section: Introductionmentioning

confidence: 99%

Spontaneous fission withβ-parameterized quasimolecular shape

Zhang

et al. 2014

Phys. Rev. C

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In the framework of a generalized liquid drop model (GLDM), a quasimolecular mechanism is introduced to describe the deformation of a nucleus in the procedure of nuclear fission or fusion. In order to more appropriately evaluate the shell correction on the fission or fusion path, the quasimolecular shape is described in terms of deformation parameters β (i.e., so-called β parameterized) by a transformation. For symmetric fission it is done analytically, whereas for asymmetric fission it is performed in a pure numerical way. Thereafter, for each quasimolecular shape, the shell correction can be calculated by the Strutinsky method where the single-particle energies are derived from a shell model in an axially deformed Woods-Saxon potential with the β-parameterized quasimolecular shape. We then use this recipe to predict the half-lives of several spontaneous fission channels for some heavy nuclei, and the results are in agreement with the experimental data.

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Application of statistical methods for analysis of heavy-ion reactions in the framework of a dinuclear system model

Cited by 36 publications

References 109 publications

Dinuclear systems in complete fusion reactions

Dinuclear systems in complete fusion reactions

Theoretical study of the synthesis of superheavy nuclei withZ=119and 120 in heavy-ion reactions with trans-uranium targets

Spontaneous fission withβ-parameterized quasimolecular shape

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