A5091513176- Nuclear physics research studies
- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Nuclear Physics and Applications
- Quantum Chromodynamics and Particle Interactions
- Nuclear reactor physics and engineering
- Quantum, superfluid, helium dynamics
- Atomic and Molecular Physics
- Radiation Therapy and Dosimetry
- Cold Atom Physics and Bose-Einstein Condensates
- Astro and Planetary Science
- Radioactive Decay and Measurement Techniques
- Graphite, nuclear technology, radiation studies
- Nuclear Materials and Properties
- Cosmology and Gravitation Theories
- Atomic and Subatomic Physics Research
- Crystallography and Radiation Phenomena
- Medical Imaging Techniques and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Mass Spectrometry Techniques and Applications
- Molecular Spectroscopy and Structure
- Superconducting Materials and Applications
- Cold Fusion and Nuclear Reactions
- Radioactive contamination and transfer
- Pulsars and Gravitational Waves Research
Institute of Applied Physics
2012-2023
Joint Institute for Nuclear Research
1973-2022
Academy of Sciences of Moldova
2005-2022
Dubna State University
2018-2021
Stony Brook University
2018
We study the $P$-odd effects related to vorticity of medium formed in noncentral heavy-ion collisions. Using kinetic quark-gluon strings model, we perform numerical simulations and hydrodynamical helicity for various atomic numbers, energies, centralities. observed vortical structures typically occupy relatively small fraction fireball volume. In course simulations, noticeable was manifest specific mirror behavior with respect reaction plane. The effect is maximal at Nuclotron based Ion...
We study the energy dependence of global polarization $\Lambda$ hyperons in peripheral $Au-Au$ collisions. combine calculation vorticity and strange chemical potential framework kinetic Quark-Gluon String Model with anomalous mechanism related to axial vortical effect. The earlier found effect helicity separation implies quadrupole structure longitudinal vorticity. pay special attention temperature dependent contribution gravitational anomaly that preliminary RHIC data are compatible its...
We study the structure of vorticity and hydrodynamic helicity fields in peripheral heavy-ion collisions using kinetic Quark-Gluon String Model. The angular momentum conservation within this model holds with a good accuracy. observe formation specific toroidal structures field (vortex sheets). Their existence is mirrored polarization hyperons percent order.
An improved version of the Cascade-Exciton Model (CEM) nuclear reactions realized in code CEM2k and Los Alamos Quark-Gluon String (LAQGSM) have been developed recently at LANL to describe induced by particles nuclei for a number applications. Our LAQGSM merged with GEM2 evaporation/fission Furihata predictive powers comparable other modern codes many better than codes; therefore both our can be used as reliable event generators transport During last year, we made significant improvements...
Results of analysis the effective mass spectra photon pairs produced in d C, Cu and p C interactions at momenta 2.75, 3.83 5.5 GeV/ c per nucleon, respectively, are presented. A structure about 38 MeV/ 2 is observed. The results testing observed signal test support conclusion that consequence detection a particle with decaying into pair photons.
The non-adiabatic description of rotational motion in odd-mass nuclei is reviewed. theory renormalization one-particle matrix elements due to residual interactions given. Equations for calculating the effective (adiabatic) parameters states are developed. analysis given a number bands rare-earth nuclei.
Along with ${\ensuremath{\pi}}^{0}$ and $\ensuremath{\eta}$ mesons, a resonance structure in the invariant mass spectrum of two photons at ${M}_{\ensuremath{\gamma}\ensuremath{\gamma}}=360\ifmmode\pm\else\textpm\fi{}7\ifmmode\pm\else\textpm\fi{}9$ MeV is observed reaction $d\text{C}\ensuremath{\rightarrow}\ensuremath{\gamma}+\ensuremath{\gamma}+X$ momentum 2.75 GeV/$c$ per nucleon. Estimates its width production cross section are $\ensuremath{\Gamma}=63.7\ifmmode\pm\else\textpm\fi{}17.8$...
The improved Cascade-Exciton Model (CEM) code CEM2k+GEM2 and the Los Alamos version of Quark-Gluon String LAQGSM are extended to describe photonuclear reactions. First, we incorporate new evaluations elementary cross sections based on latest experimental data into also make several improvements in description de-excitation nuclei remaining after cascade stage reactions induced by arbitrary projectiles. Next, for include a normalization evaluated absorption recent systematics Kossov...
Abstract Simulations of peripheral Au+Au collisions at NICA energies are performed in the PHSD transport model. The properties vorticity field studied different impact parameters. Quadrupole structures all planes obtained. A thin layer large is found boundary fireball, so-called vortex sheet. effect helicity separation detected. Calculation hyperon polarization thermodynamic and anomalous models performed.
Abstract In the FRAGM experiment at heavy-ion accelerator $$-$$ accumulator complex ITEP TWA, yields of cumulative charged $$\pi$$ mesons have been measured in a fragmentation carbon ions with energy 3.2 GeV/nucleon on beryllium target. The momentum spectra cover four orders invariant cross section magnitude. They demonstrate exponential fall increasing energy. inverse slope parameter is compared similar measurements nucleon–nucleus interactions and ion–ion collisions lower energies....
The results of an analysis the invariant mass spectra photon pairs produced in dC, pC and dCu interactions at momenta 2.75, 5.5 3.83 GeV/c per nucleon respectively, are presented. Signals form enhanced structures masses about 17 38 MeV/c2 observed. testing observed signals, including Monte Carlo simulation test support conclusion that signals consequence detection particles with decaying into a pair photons.
We study the structure of vorticity and hydrodynamic helicity fields in peripheral heavy-ion collisions using kinetic Quark-Gluon Strings Model. The angular momentum which is a source P-odd observables preserved within this model with good accuracy. observe formation specific toroidal structures field. Their existence mirrored polarization hyperons percent order. observed qualitative energy dependence was predicted earlier quantified now.
The improved Cascade-Exciton Model code CEM2k and the Los Alamos version of Quark-Gluon String LAQGSM, previously merged with Generalized Evaporation Furihata (GEM2) were further modified to provide reliable proton-induced fission cross sections for applications. By adjusting two parameters in GEM2 each measured reaction, we able describe very well CEM2k+GEM2 LAQGSM+GEM2 all available experimental induced by protons energies from 20 MeV 10 GeV both subactinide actinide targets. We also...