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The concept of collinear spontaneous true ternary fission of 252Cf 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…

核理论 · 物理学 2019-05-07 F. F. Karpeshin

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

To describe of dynamics of ternary fission of $^{252}$Cf an equation of motion of the tri-nuclear system is calculated. The fission of the $^{70}$Ni+$^{50}$Ca+$^{132}$Sn channel was chosen as one of the more probable channels of true…

核理论 · 物理学 2016-11-15 R. B. Tashkhodjaev , A. K. Nasirov , E. Kh. Alpomeshev

The mechanism leading to the formation of the observed products of the collinear cluster tripartition is carried out within the framework of the model based on the dinuclear system concept. The yield of fission products is calculated using…

核理论 · 物理学 2011-11-10 R. B. Tashkhodjaev , A. K. Nasirov , W. Scheid

Our understanding of nuclear fission, a fundamental nuclear decay, is still incomplete due to the complexity of the process. In this paper, we describe a study of spontaneous fission using the symmetry-unrestricted nuclear density…

核理论 · 物理学 2009-08-18 A. Staszczak , A. Baran , J. Dobaczewski , W. Nazarewicz

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

A classical dynamical model that treats break-up stochastically is presented for low energy reactions of weakly-bound nuclei. The three-dimensional model allows a consistent calculation of breakup, incomplete and complete fusion cross…

核理论 · 物理学 2008-11-26 A. Diaz-Torres , D. J. Hinde , J. A. Tostevin , M. Dasgupta , L. R. Gasques

A weak dependence of the angular momentum of $^{144}$Ba fragments, produced in the spontaneous fission of $^{252}$Cf, on the total kinetic energy (TKE) was recently observed \cite{Giha2025}. To investigate this phenomenon, we propose a…

核理论 · 物理学 2025-06-10 A. Rahmatinejad , T. M. Shneidman , G. G. Adamian , N. V. Antonenko

We predict a molecular vibrational state in the cold binary fission of $^{252}$Cf using a simple decay cluster model. The Hamiltonian of two even-even fragments in the pole-pole configuration is built in the same fashion as that for the…

核理论 · 物理学 2015-06-26 S Misicu , A Sandulescu , W Greiner

The energy spectrum of the high energy gamma-rays in coincidence with the prompt gamma rays has been measured for the spontaneous fission of 252Cf. The nucleus-nucleus coherent bremsstrahlung of the accelerating fission fragments is…

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…

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

Collinear configurations of the helium-like atomic systems, relevant, e.g., for the quasifree mechanism of the double photoionization of helium, are studied, parameterized by the single scalar parameter $-1\leq \lambda\leq1$ ("collinear…

原子物理 · 物理学 2020-05-20 Evgeny Z. Liverts , Rajmund Krivec , Nir Barnea

The article reviews the general version of the Bohr collective model for the description of quadrupole collective states, including a detailed study the model's kinematics. The general form of the classical and quantum Bohr Hamiltonian is…

核理论 · 物理学 2010-02-25 L. Prochniak , S. G. Rohozinski

The measurement for charge distributions of fragments in 252Cf has been performed by using a unique style of detector setup consisting of a typical grid ionization chamber and a dE-E particle telescope. We found that the fragment mass…

核实验 · 物理学 2015-12-01 Taofeng Wang , Liping Zhu , Liming Wang , Qinghua Men , Hongyin Han , Haihong Xia

Atomic nuclei are self-organized, many-body quantum systems bound by strong nuclear forces within femtometer-scale space. These complex systems manifest a variety of shapes, traditionally explored using non-invasive spectroscopic techniques…

核实验 · 物理学 2024-11-19 STAR Collaboration

Relativistic nuclear collisions have emerged as a new tool for probing many-body correlations of nucleons in the ground states of atomic nuclei. Here, we investigate the connection between three-nucleon correlations inside nuclei and…

核理论 · 物理学 2026-04-02 Hadi Mehrabpour , Giuliano Giacalone , Matthew W. Luzum

New approximate analytical solutions have been obtained for the conformable fractional collective Bohr Hamiltonian suitable for triaxial nuclei, with the harmonic oscillator in {\gamma}-part of the collective potential and different…

核理论 · 物理学 2023-11-07 M. M. Hammad , M. M. Yahia , Dennis Bonatsos

Excited nuclear fragments are emitted during nuclear fission. The de-excitation of these fission fragments takes place as sequential emission of neutrons followed by photons. A correlation between neutron and photon multiplicities…

We use a binary sequential decay model in order to describe the fragmentation of a nucleus induced by the high energy collisions of protons with Au nuclei. Overall agreement between measured and calculated physical observables is obtained.…

核理论 · 物理学 2009-10-31 P. Wagner , J. Richert , V. A. Karnaukhov , H. Oeschler
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