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Within the Unified ternary fission model (UTFM), the alpha accompanied ternary fission of even-even $^{244-260}$Cf isotopes has been studied by taking the interacting barrier as the sum of Coulomb and proximity potential. For the alpha…

核理论 · 物理学 2016-04-22 K P Santhosh , Sreejith Krishnan

The cold ternary fission of $^{238}$Pu, $^{240}$Pu, $^{242}$Pu and $^{244}$Pu isotopes, with $^{4}$He as light charged particle, in equatorial and collinear configuration has been studied within the Unified ternary fission model (UTFM). The…

核理论 · 物理学 2015-06-24 K. P. Santhosh , Sreejith Krishnan , B. Priyanka

The cold binary fission of even-even 244-258Cf isotopes has been studied by taking the interacting barrier as the sum of Coulomb and proximity potential. The favorable fragment combinations are obtained from the cold valley plot (plot of…

核理论 · 物理学 2016-03-04 K. P. Santhosh , Annu Cyriac , Sreejith Krishnan

For the first time, we apply the temperature dependent relativistic mean field (TRMF) model to study the ternary fission of heavy nucleus using level density approach. The probability of yields of a particular fragment is obtained by…

We consider the collinear ternary fission which is a sequential ternary decay with a very short time between the ruptures of two necks connecting the middle cluster of the ternary nuclear system and outer fragments. In particular, we…

核理论 · 物理学 2015-06-11 R. B. Tashkhodjaev , A. I. Muminov , A. K. Nasirov , W. von Oertzen , Yongseok Oh

The most probable outcome of the ternary fission is the emission of two heavy fragments and one light-charged particle. In about 90\%, these are $\alpha$ particles, which often referred to as the long-range alpha (LRA). Such decay has been…

核理论 · 物理学 2024-08-06 J. Khuyagbaatar

Ternary fission yields in the reaction 241Pu(nth,f) are calculated using a new model which assumes a nucleation-time moderated chemical equilibrium in the low density matter which constitutes the neck region of the scissioning system. The…

核实验 · 物理学 2015-06-19 S. Wuenschel , H. Zheng , K. Hagel , B. Meyer , M. Barbui , E. J. Kim , G. Roepke , J. B. Natowitz

We compute the final kinetic energies of the fragments emitted in the light charged particle accompanied cold fission of $^{252}$Cf taking into account the ground state quadrupole deformation and the finite-size effects of the fragments and…

核理论 · 物理学 2007-05-23 Serban Misicu , A. Sandulescu , F. Carstoiu , M. Rizea , W. Greiner

A new type of decay corresponding to the neutronless $^{10}$Be-accompanied fragmentation of $^{252}$Cf is studied. We employ a cluster model similar to the model used for the description of cluster radioactivity. No preformation factors…

核理论 · 物理学 2016-09-08 A. Sandulescu , F. Carstoiu , S. Misicu , A. Florescu , A. V. Ramayya , J. H. Hamilton , W. Greiner

True ternary fission and Tin-accompanied ternary fission of $^{242}$Pu are studied by using Three Cluster Model. True ternary fission is considered as formation of heavy fragments in the region $28\leq Z_1,Z_2,Z_3\leq 38$, with comparable…

核理论 · 物理学 2019-09-04 M. Zadehrafi , M. R. Pahlavani , M. -R. Ioan

We investigate the ternary fissions of $^{252}$Cf (spontaneous) and $^{236}$U (neutron-induced) into medium-mass fragments, as reported by the Dubna group, using the Hartree-Fock plus BCS method with the SLy6 Skyrme interaction. Compared to…

核理论 · 物理学 2025-07-01 Yannen Jaganathen , Janusz Skalski

A recent analysis of experimental ternary fission fragment yields using a nucleation moderated statistical equilibrium model reproduced observed yields with fairly good accuracy. In the present work, the same approach is applied to neck…

核实验 · 物理学 2020-03-09 J. Gauthier , M. Barbui , X. Cao , K. Hagel , R. Wada , S. Wuenschel , J. B. Natowitz

The ternary cluster decay of heavy nuclei has been observed in several experiments with binary coincidences between two fragments using detector telescopes (the FOBOS-detectors, JINR, Dubna) placed on the opposite sides from the source of…

核理论 · 物理学 2020-12-30 W. von Oertzen , A. K. Nasirov

Mass distribution of fission products has been determined in (alpha+232Th) reaction at Elab=36.2 MeV using alpha particles from the cyclotron at the Variable Energy Cyclotron Centre (VECC), Kolkata. Yields of 69 fission products having…

Detailed assessments of the ability of recent theoretical approaches to modeling existing experimental data for ternary fission confirm earlier indications that the dominant mode of cluster formation in ternary fission is clusterization in…

核理论 · 物理学 2023-02-08 J. B. Natowitz , H. Pais , G. Röpke

Two-particle azimuthal correlations of electrons from heavy-flavour hadron decays with charged particles can give insight into the properties of heavy-quark production and hadronization into heavy-flavour jets.\\ In this contribution, the…

高能物理 - 实验 · 物理学 2021-09-21 Ravindra Singh

A possibility of formation of the three reaction products having comparable masses at the spontaneous fission of $^{252}$Cf is theoretically explored. This work is aimed to study the mechanism leading to observation of the reaction products…

核理论 · 物理学 2015-10-28 A. K. Nasirov , W. von Oertzen , R. B. Tashkhodjaev

The systematic study of fission fragment yields under different initial conditions provides a valuable experimental benchmark for fission models that aim to understand this complex decay channel and to predict reaction product yields.…

During the fission process, the nucleus deforms and elongates up to the two fragments inception and their final separation at scission deformation. The evolution of the nucleus energy with deformation is determined by the macroscopic…

Using a unique two-arm detector system for heavy ions (the BRS, binary reaction spectrometer) coincident fission events have been measured from the decay of $^{60}$Zn compound nuclei formed at 88MeV excitation energy in the reactions with…

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