A5075177012- Nuclear physics research studies
- Astronomical and nuclear sciences
- Atomic and Molecular Physics
- Quantum Chromodynamics and Particle Interactions
- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Cold Fusion and Nuclear Reactions
- Advanced Chemical Physics Studies
- Quantum chaos and dynamical systems
- Advanced Thermodynamics and Statistical Mechanics
- Rare-earth and actinide compounds
- Cold Atom Physics and Bose-Einstein Condensates
- Astro and Planetary Science
- Spectroscopy and Quantum Chemical Studies
- Quantum, superfluid, helium dynamics
- Quantum Information and Cryptography
- High-Energy Particle Collisions Research
- Quantum and electron transport phenomena
- Quantum Mechanics and Applications
- stochastic dynamics and bifurcation
- Nuclear Materials and Properties
- Statistical Mechanics and Entropy
- Advanced NMR Techniques and Applications
- Cosmology and Gravitation Theories
- Gamma-ray bursts and supernovae
Tomsk Polytechnic University
2016-2025
Joint Institute for Nuclear Research
2016-2025
National Research Tomsk State University
2016-2025
Babeș-Bolyai University
2017-2024
Yonsei University
2021-2022
Dubna State University
2006-2021
Institute for Basic Science
2015-2017
Kazan Federal University
2016
Russian Academy of Natural Sciences
2015
Omsk State Transport University
2015
An effective method to calculate the potential energy of a dinuclear system is suggested. The nuclear part nucleus-nucleus taken in double folding form. analytical expressions obtained allow one simplify calculations interaction between two nuclei except near drip lines. relationship and proximity found. influence deformation relative orientation on investigated. applied energies trinuclear systems.
A new procedure is developed for calculating the charge, mass, and kinetic energy distributions of quasifission products. The treated within a transport model which describes master equation evolution dinuclear system in charge mass asymmetries its decay along internuclear distance. calculated yields products their are agreement with recent experimental data hot fusion reactions leading to superheavy nuclei. importance shell deformation effects noted. preneutron postneutron emissions as well...
Abstract In the past 85 years number of known nuclides increased by more than a factor ten, resulting in 4000 presently isotopes 118 elements. This considerable progress we owe to discovery new reaction types along with development powerful accelerators and experimental techniques for separation identification products. Model predictions indicate that still about further are waiting their discovery. The vastest unexplored territory is located on neutron-rich side upper half chart hides...
The evaporation residue cross sections ${\mathrm{\ensuremath{\sigma}}}_{\mathrm{ER}}$ in reactions between massive nuclei have been analyzed within different models of complete fusion. calculations the framework optical model, surface friction and macroscopic dynamic model can give results which are by few orders magnitude from experimental data. This takes place due to neglect competition fusion quasifission. A possible mechanism compound nucleus formation heavy-ion-induced has suggested....
The properties of the states alternating parity bands in actinides and Ba, Ce, Nd isotopes are analyzed within a cluster model. model is based on assumption that cluster-type shapes produced by collective motion nuclear system mass asymmetry coordinate. calculated spin dependences splitting electric multipole transition moments agreement with experimental data.
The roles of nuclear deformation and neutron transfer in sub-barrier capture process are studied within the quantum diffusion approach. change deformations colliding nuclei with exchange can crucially influence fusion. comparison calculated cross section measured fusion various reactions at extreme sub- barrier energies gives us information about quasifission.
Using the statistical model with collective enhancement of level density, and fission neutron evaporation characteristics predicted in different theoretical models, we analyze survival probabilities even-even odd superheavy nuclei. The dependence obtained results on input is discussed. role factors density treated. For $Z>~114,$ calculated ratios width to thus residue cross sections are strongly various models predicting nuclear properties.
Possibilities of production new isotopes superheavy nuclei with charge numbers 104--108 in asymmetry-exit-channel quasifission reactions are studied for the first time. The optimal conditions synthesis suggested this type reaction. products can fill a gap unknown between heaviest obtained cold and hot complete fusion reactions.
The isotopic dependence of two-quasiparticle isomeric states in Fm and No is treated for future experiments. population the evaporation residues considered. In several even isotopes Rf, Sg, Hs, Ds, $K$ isomers their decay modes are predicted. An $\ensuremath{\alpha}$-decay chain through superheavy nuclei demonstrated first time proposed experimental verification.
The shell structure of heavy nuclei with $Z>104$, which can be produced in the actinide-based complete fusion reactions, is studied a modified two-center model. Using microscopic-macroscopic approach, mass excesses and ${Q}_{\ensuremath{\alpha}}$-values are calculated compared available experimental data. predicted properties superheavy show that next doubly magic nucleus beyond ${}^{208}$Pb at $Z\ensuremath{\ge}120$. It shown production cross sections new decisively depend on position...
The production cross sections of new neutron-rich $^{84,86}\mathrm{Zn}$ and $^{90,92}\mathrm{Ge}$ isotopes beyond $N=50$ are estimated for the first time in multinucleon transfer reactions $^{48}\mathrm{Ca}$ $+$ $^{238}\mathrm{U}$ $^{244}\mathrm{Pu}$. with a beam is discussed future experiments.
The role of neutron transfer with positive $Q$-value in sub-barrier capture reactions ${}^{132}$Sn,${}^{130}$Te+${}^{58,64}$Ni, and ${}^{60}$Ni+${}^{100}$Mo, measured recently by Z. Kohley et al. [Phys. Rev. Lett. 107, 202701 (2011)] F. Scarlassara [EPJ Web Conf. 17, 05002 (2011)], is studied explained within the quantum diffusion approach. It shown that two neutrons influences through change deformations colliding nuclei. Based on our analysis, one can understand why influence strong some...
With the improved scission-point model mass distributions are calculated for induced fission of different Hg isotopes with masses 180-196. The drastic change in shape distribution from asymmetric to symmetric is revealed increasing number fissioning isotope, and reactions proposed verify this prediction experimentally. fragments observed recent experiment on 180Hg explained. mean total kinetic energy a good agreement available experimental data.
Using the dinuclear system model, influence of driving potentials and thresholds particle emission from a compound nucleus on formation evaporation residues is studied in complete fusion reactions. The experimental maximum production cross sections excitation functions $xn$, $pxn$, $\ensuremath{\alpha}xn$ channels reactions leading to nuclei with atomic numbers ${Z}_{\mathrm{CN}}$ = 84, 90, 92 are well described several predictions made.
Decay modes of excited nuclei are investigated in $^{78,82}$Kr + $^{40}$Ca reactions at 5.5 MeV/nucleon. Charged products were measured by means the $4\pi$ INDRA array. Kinetic-energy spectra and angular distributions fragments with atomic number 3 $\le Z \le$ 28 indicate a high degree relaxation compatible fission-like phenomenon. Persistence structure effects is evidenced from elemental cross-sections ($\sigma_{Z}$) as well strong odd-even-staggering (o-e-s) light-fragment yields. The...
The formation of excited compound nucleus (CN) and its statistical decay is investigated within the dinuclear system (DNS) model.The initial DNS formed in entrance channel when projectile captured by a target, then evolution mass asymmetry coordinate leads to hot CN. emission barriers for complex fragments were calculated model using double folding procedure interaction potential. It shown that cross sections fragment become larger CN more neutron deficient. This approach gives also an...