Ternary fission of nuclei into comparable fragments

Karpeshin, F. F.

doi:10.1134/s1063778815040080

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…An original approach to description of the CCT was proposed in Ref. [15]. It is quite different from TNS concept and generically involves fission into three fragments.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Examination of evidence for collinear cluster tri-partition

et al. 2017

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In a series of the experiments at different time-of-flight spectrometers of heavy ions we have observed manifestations of a new at least ternary decay channel of low excited heavy nuclei. Due to specific features of the effect, it was called collinear cluster tri-partition (CCT). The experimental results obtained initiated a number of theoretical articles dedicated to different aspects of the CCT. We compare theoretical predictions with our experimental data, only partially published so far. The model of one of the most populated CCT modes that gives rise to the so called "Ni-bump" is discussed. Detection of the 68-72Ni fission fragments with a kinetic energy E<25 MeV at the mass-separator Lohengrin is proposed for an independent experimental verification of the CCT.Comment: 16 pages, 14 figure

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“…An original approach to description of the CCT was proposed in Ref. [15]. It is quite different from TNS concept and generically involves fission into three fragments.…”

Section: Theoretical Backgroundmentioning

confidence: 99%

Examination of evidence for collinear cluster tri-partition

et al. 2017

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“…9. (color online) Shapes of the fissioning 252 Cf nucleus for the parameter of the hexadecapole deformation β40 = 1.7 and 1.902 [27] i . Mass ratio for the middle and one of the extreme fragments is equal to 2.13 and 1.87, respectively (a).…”

Section: Fine Structures In Mass-energy Distributions Of Fission Fragmentioning

confidence: 99%

“…A mechanism of true ternary fission was proposed in Ref. [27]. This mechanism is driven by a hexadecapole deformation of the fissioning nucleus.…”

Section: Fine Structures In Mass-energy Distributions Of Fission Fragmentioning

confidence: 99%

Manifestations of Clustering in Binary and Ternary Fission of Low Excited Heavy Nuclei

Pyatkov

Kamanin

2017

Nuclear Particle Correlations and Cluster Physics

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“…The idea of generic mechanism of TTF was expressed in Refs. [5,6,7], in contrast to the consecutive one. It is suggested that TTF develops along a special dynamical path to which the nucleus enters at the very beginning of fission.…”

Section: Introductionmentioning

confidence: 99%

True ternary fission and the rotation effect

Karpeshin

2017

Bull. Russ. Acad. Sci. Phys.

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The concept of collinear spontaneous true ternary fission of 252 Cf is subject to critical analysis. The conclusion is that the collinear flight of the fragments turns out to be a natural and most probable mode. The collinearity arises in the model on the prescission stage as a result of the account of the principles of the collective Bohr?s model. It is partly destroyed at the post-scission stage of spreading of the fragments due to their Coulomb interaction, with the allowance for the spin effects arising at the moment of scission. The final angular distribution of the fragments is calculated by means of the trajectory simulations. The calculated relative angle of the heavy and light fragments is kept 180 • with an uncertainty within 0.4 • , which justifies search for a collinear tri-partition at the modern stage of experiment.

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Ternary fission of nuclei into comparable fragments

Cited by 4 publications

References 7 publications

Examination of evidence for collinear cluster tri-partition

Examination of evidence for collinear cluster tri-partition

Manifestations of Clustering in Binary and Ternary Fission of Low Excited Heavy Nuclei

True ternary fission and the rotation effect

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