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В.Воронюк (снс, ЛФВЭ), Н.С.Цегельник (стажер-исследователь, ЛТФ), Е.Э.Коломейцев (внс, ЛТФ) The strange baryon production in Bi + Bi collisions at √sNN = 9.0 GeV is studied using the PHSD transport model. Hyperon and anti-hyperon yields, transverse momentum spectra, and rapidity spectra are calculated, and their centrality dependence and the effect of …

M. Kozhevnikova and Yu. B. Ivanov We present results of simulations of light-nuclei production in relativistic heavy-ion collisions within the updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (ultrarelativistic quantum molecular dynamics) final State interactions (theseus). The simulations were performed for Pb + Pb and Au + Au collisions in the collision …

Marina Kozhevnikova, Yuri B. Ivanov Light-nuclei production in relativistic heavy-ion collisions is simulated within an updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (Ultra-relativistic Quantum Molecular Dynamics) final State interactions (THESEUS). The simulations are performed in the collision energy range of √sNN = 6.4–19.6 GeV. The light-nuclei are produced within …

M. Kozhevnikova (LHEP JINR, Dubna), Yu.B. Ivanov (Kurchatov Inst., Moscow and Dubna, JINR) We present results of simulations of light-nuclei production in Au+Au collisions at a collision energy of √sNN = 3 GeV within the updated Three-fluid Hydrodynamics-based Event Simulator Extended by UrQMD (ultrarelativistic quantum molecular dynamics) final State interactions …

M. Kozhevnikova and Yu. B. Ivanov Simulations of the Λ-hyperon and light-hypernuclei production in Au+Au collisions at √sNN = 3 GeV were performed within the updated three-fluid hydrodynamics-based event simulator extended by UrQMD (ultrarelativistic quantum molecular dynamics) final state interactions (THESEUS). The light (hyper)nuclei are treated thermodynamically, i.e., they are considered …

Yu. B. Ivanov and M. Kozhevnikova We present results of simulations of directed flow of various hadrons in Au + Au collisions at collision energies of √sNN = 3 and 4.5 GeV. Simulations are performed within the model three-fluid dynamics and the event simulator based on it (THESEUS). The results are compared …

Yu. B. Ivanov and M. Kozhevnikova DOI: 10.1103/PhysRevC.110.014907.

The SPD Collaboration: V. Abazov, V. Abramov, L. Afanasyev, R. Akhunzyanov, A. Akindinov, I. Alekseev, A. Aleshko, V. Alexakhin, G. Alexeev, L. Alimov, A. Allakhverdieva, A. Amoroso, V. Andreev, V. Andreev, E. Andronov, Yu. Anikin, S. Anischenko, A. Anisenkov, V. Anosov, E. Antokhin, A. Antonov, S. Antsupov, A. Anufriev, K. Asadova, S. Ashraf, V. Astakhov, A. Aynikeev, M. Azarkin, N. Azorskiy, A. Bagulya, D. Baigarashev, A. Baldin, E. Baldina, N. Barbashina, A. Barnyakov, S. Barsov, A. Bartkevich, V. Baryshevsky, K. Basharina, A. Baskakov, V. Baskov, M. Batista, M. Baturitsky, V. Bautin, T. Bedareva, S. Belokurova, A. Belova, E. Belyaeva, A. …

В. В. Ужинский, А. С. Галоян, Н. А. Чалый Недавно (2024 г.) коллаборация NA61/SHINE представила экспериментальные данные о рождении π±, K±, протонов и антипротонов в центральных 40Ar +45 Sc взаимодействиях при Plab = 13−150 A · ГэВ/c. Коллаборация сравнила данные с предсказаниями популярных теоретических моделей. Оказалось, что модели неудовлетворительно описывают …

A. Galoyan, A. Ribon & V. Uzhinsky  Two-particle transverse momentum (PT) correlations are investigated for proton–proton and deuteron–deuteron interactions at the center-of-mass energy of NN collisions of 10 GeV. The correlations between Λ—hyperons and anti-Λ—hyperons, K-, π—mesons and protons are calculated using the Geant4 FTF and Pythia 6.4 models. It is shown that PT correlations between Λ—hyperons and …

A. Galoyan, V. Uzhinsky The NA61/SHINE collaboration measured inclusive cross sections of \pi^+ and \pi^- meson production in the interactions of 31 GeV/c protons with carbon nuclei at forward emission angles (0 — 420 mrad). The collaboration also presented predictions of Monte Carlo models — FLUKA, VENUS and UrQMD, in …

N. K. Dulaev, D. A. Telnov, V. M. Shabaev, Y. S. Kozhedub, X. Ma, I. A. Maltsev, R. V. Popov , and I. I. Tupitsyn Energy-angle differential and total probabilities of positron creation in slow supercritical collisions of two identical heavy nuclei are calculated beyond the monopole approximation. The time-dependent …

A. V. Malyshev, Y. S. Kozhedub, V. M. Shabaev, and I. I. Tupitsyn The ab initio approach is used to evaluate the excitation energies of the 2⁢s⁢2p⁢2S+1⁢PJ states from the ground state as well as the 2⁢s⁢2p⁢3P1→ 2⁢s⁢2p⁢3P0 and 2⁢s⁢2p⁢3P2→2s⁢2p⁢3P1 transition energies for selected Be-like highly charged ions over a wide …

I. I. Tupitsyn, I. M. Savelyev, Y. S. Kozhedub, D. A. Telnov, N. K. Dulaev, A. V. Malyshev, E. A. Prokhorchuk, and V. M. Shabaev The problem of orbital collapse of the 5⁢g and 6⁢f electrons in atoms of superheavy elements (SHEs) is considered. Previously, the presence of the orbital …

Проведена оптимизация базисного набора гауссовых функций для релятивистских расчетов химических свойств сверхтяжелого элемента с зарядом ядра Z=119Z=119. Полученный базис использован для вычисления потенциала ионизации и сродства к электрону 119-го элемента в рамках односсылочного метода связанных кластеров и метода связанных кластеров в пространстве Фока. DOI: 10.61011/OS.2024.10.59411.7283-24.

Д. П. Усов, Н. К. Дулаев, А. В. Столяров, Ю. С. Кожедуб, И. И. Тупицын, В. М. Шабаев Релятивистский расчет молекулярных свойств низколежащих электронных состояний радикала OH выполнен с использованием различных неэмпирических методов квантовой химии. В результате исследования получены кривые потенциальной энергии для электронных состояний в широком диапазоне межъядерных расстояний, …

Anton Ryzhkov, Valeria Pershina, Miroslav Iliaš and Vladimir Shabaev Adsorption energies, Eads, of oxides and oxyhydrides of the superheavy element (SHEs) Ts and of its lighter homologue At on the gold surface are predicted on the basis of relativistic periodic density functional theory calculations via AMS BAND software. The following compounds were considered: …

A. S. Bazhin and V. V. Samarin The energy and the squared modulus of the wave function of the ground state of the 9Be nucleus as a system of two alpha-clusters and an outer neutron were calculated using hyperspherical functions. A system of hyperradial equations was solved using cubic splines. The …

Aidos K. Azhibekov, Englik K. Almanbetova, Mikhail A. Naumenko, Kairat O. Mendibayev, Sergey M. Lukyanov, Talgat G. Issatayev, Bakhytzhan A. Urazbekov, Asset M. Kabyshev, Kuralay Dyussebayeva and Timur K. Zholdybayev The paper presents the results of experiments on measuring cross-sections for the neutron transfer channels 9Be(3He, α)8Begs,3.03 in the reaction of the 3He …

Mridupawan Deka, Maxim Dvornikov In this work, we study neutrino spin oscillations in the case when they are gravitationally scattered off a rotating Kerr black hole surrounded by a thick magnetized accretion disk. We consider only toroidal magnetic field inside the disk. Neutrino spin precession is caused by the interaction of …