Vol. 80, No. 4, 2025

Moscow University Physics Bulletin

THEORETICAL AND MATHEMATICAL PHYSICS

Anomalous Behaviour of Gap Intensity in Paired Alkali Metal Nanoparticles with Mesoscopic Boundary Conditions

Yu. A. Eremin and V. V. Lopushenko p. 633 abstract

Method for Obtaining a Bistatic RCS Diagram of a Body Using Near-Field Data on a Plane or Cylinder Using Discrete Sources

N. P. Balabukha, D. A. Konyaev, and N. E. Shapkina p. 640 abstract

Steady-State Solution of a Two-Component Reaction–Diffusion System with a Singular Source of the Fast Component at the Boundary

K. A. Kotsubinsky and N. T. Levashova p. 650 abstract

Synthesis of Parameters of a Photonic Crystal That Supports a Bloch Wave for the Maximum Time

A. N. Bogolyubov and A. D. Nikitchenko p. 658 abstract

Higher \({\varepsilon}\)-Poles and Logarithms in the MS-Like Schemes from the Algebraic Structure of the Renormalization Group

N. P. Meshcheriakov, V. V. Shatalova, and K. V. Stepanyantz p. 664 abstract

Thermal Equation of State for a System with a Two-Particle Interaction Potential in Rényi Statistics

D. V. Nakashidze, A. M. Savchenko, and K. M. Semenov p. 676 abstract

Phenomenological Model of Electric Charge Distribution in a Nonuniformly Stressed Conductor

O. N. Gavrish, I. P. Denisova, N. V. Kalenova, and E. T. Eniev p. 685 abstract

Method for Designing a Three-Dimensional Collimator Mirror Model with Rolled Edges Based on the Solutions of Two-Dimensional Synthesis Problems

M. I. Propoy, F. B. Khlebnikov, D. A. Konyaev, N. E. Shapkina, and A. N. Bogolyubov p. 690 abstract

PHYSICS OF NUCLEI AND ELEMENTARY PARTICLES

Theoretical Calculations of \({}^{\boldsymbol{161}}\)Tb Production on Dysprosium Isotopes

N. Yu. Fursova, R. A. Aliev, S. S. Belyshev, and A. A. Kuznetsov p. 698 abstract

Form Factor and Mean-Square Radius of the Vector Current of a Composite System of Two Particles with Arbitrary Masses and Spins 1/2

Yu. D. Chernichenko p. 707 abstract

Hard Bremsstrahlung for Prompt Photon Production Processes

A. A. Kampf p. 730 abstract

RADIOPHYSICS, ELECTRONICS, ACOUSTICS

Surface Topography Modification of Additive Manufactured Ti6Al4V and AlSi10Mg Alloys under Argon Cluster Ion Irradiation

D. S. Kireev, D. R. Bessmertnyi, V. S. Chernysh, and A. E. Ieshkin p. 741 abstract

Modification of the Surface Topography and Composition of Nickel Superalloy by Irradiation with Gas Cluster Ions

A. V. Nazarov, D. S. Kireev, E. S. Kosenyuk, A. A. Tatarintsev, A. V. Lubenchenko, O. N. Pavlov, P. N. Degtyarenko, and A. A. Shemukhin p. 747 abstract

Calculation of Mass Distributions of Cu Surface Fragments Sputtered by Ar Cluster Ions Based on Molecular Dynamics Simulation

A. V. Nazarov, D. S. Kireev, A. N. Rattsev, and V. S. Chernysh p. 756 abstract

OPTICS AND SPECTROSCOPY. LASER PHYSICS

Intensity Modulation of Narrow-Linewidth IR Laser Radiation during Transmission through a Quantum Cascade Laser Structure

S. A. Chakhlov, L. A. Miklashevich, A. A. Lastovkin, and N. G. Zakharov p. 762 abstract

Neural Networks Assisted Reconstruction Wavefront of Laser Radiation Based on Intensity Profile near the Focus of Converging Lens

N. V. Iakushkin, A. V. Mitrofanov, A. V. Vasiliev, A. V. Larichev, N. G. Iroshnikov, and D. A. Sidorov-Biryukov p. 766 abstract

Spatio-Temporal Dynamics of Terahertz Pulses Generated by Photoconductive Semiconductor Antennas Based on LT-GaN

E. R. Burmistrov, L. P. Avakyants, N. A. Parfent’eva, and S. N. Gavrilin p. 775 abstract

CONDENSED MATTER PHYSICS

Some Features of the Functional Activity of Multiwall Carbon Nanotubes in Polymer Nanocomposites

N. G. Chechenin, V. A. Kobzev, S. S. Avtorin, E. A. Vorobyeva, and A. V. Makunin p. 785 abstract

Magneto-Optical Effects of Ferromagnetic Metals in the Terahertz Spectral Range

M. A. Simdyanova and A. B. Granovskii p. 791 abstract

ASTRONOMY, ASTROPHYSICS, AND COSMOLOGY

Water Formation on Asteroids

A. Yu. Dubinsky, S. I. Popel, and Yu. S. Reznichenko p. 795 abstract

Shadows of Black Holes in Loop Quantum Gravity with Account for Rotation

S. O. Alexeyev, E. A. Antonov, and O. I. Zenin p. 801 abstract

PHYSICS OF EARTH, ATMOSPHERE, AND HYDROSPHERE

Prediction of the Viscosity of Binary Mixtures of Hydrocarbons and Carbon Dioxide Using the Lohrenz–Bray–Clark Model

E. E. Volodina and A. V. Isaeva p. 808 abstract

Causal Relationships between Climate and the Carbon Cycle Considering Natural Climate Variability and Economic Cyclicity of Anthropogenic Greenhouse Gas Emissions into the Atmosphere

K. E. Muryshev, A. V. Eliseev, I. I. Mokhov, S. N. Denisov, A. V. Timazhev, and G. P. Klimovich p. 821 abstract

Earth’s Dipole Magnetic Field: Conditions for Existence

M. Yu. Reshetnyak p. 829 abstract

A New Site of Methane Fluxes near Cape Ayu-Dag: First Data on Gas Flow and Genesis

A. A. Budnikov, E. A. Krasnova, and T. V. Malakhova p. 834 abstract

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