Zobrazeno 1 - 10
of 22 749
pro vyhledávání: '"Grigoriev AS"'
Modeling the motion of ultracold neutrons (UCNs) is crucial for assessing their losses, accurately measuring their lifetime, and describing other experiments. In material traps, it is necessary to account not only for specular but also for diffuse el
Externí odkaz:
http://arxiv.org/abs/2412.05106
Stability boundaries of the skyrmion lattice in non-centrosymmetric bulk ferromagnets with the Dzyaloshinskii-Moriya interaction in external magnetic field are discussed. We compare the classical energies of the spin configuration of the conical heli
Externí odkaz:
http://arxiv.org/abs/2412.03228
Publikováno v:
Bull. Russ. Acad. Sci. Phys. 88, 1472-1477 (2024)
A film of liquid helium on the surface of material traps for ultracold neutrons protects the neutrons from being absorbed by the trap walls. By using surface roughness and an electrostatic field, it is possible to maintain a helium film of sufficient
Externí odkaz:
http://arxiv.org/abs/2411.19645
Autor:
The MEG II collaboration, Afanaciev, K., Baldini, A. M., Ban, S., Benmansour, H., Boca, G., Cattaneo, P. W., Cavoto, G., Cei, F., Chiappini, M., Corvaglia, A., Maso, G. Dal, De Bari, A., De Gerone, M., Barusso, L. Ferrari, Francesconi, M., Galli, L., Gallucci, G., Gatti, F., Gerritzen, L., Grancagnolo, F., Grandoni, E. G., Grassi, M., Grigoriev, D. N., Hildebrandt, M., Ignatov, F., Ikeda, F., Iwamoto, T., Karpov, S., Kettle, P. -R., Khomutov, N., Kolesnikov, A., Kravchuk, N., Krylov, V., Kuchinskiy, N., Leonetti, F., Li, W., Malyshev, V., Matsushita, A., Meucci, M., Mihara, S., Molzon, W., Mori, T., Nicolò, D., Nishiguchi, H., Ochi, A., Ootani, W., Oya, A., Palo, D., Panareo, M., Papa, A., Pettinacci, V., Popov, A., Renga, F., Ritt, S., Rossella, M., Scarpellini, A. Rozhdestvensky. S., Schwendimann, P., Signorelli, G., Takahashi, M., Uchiyama, Y., Venturini, A., Vitali, B., Voena, C., Yamamoto, K., Yokota, R., Yonemoto, T.
The observation of a resonance structure in the opening angle of the electron-positron pairs in the $^{7}$Li(p,\ee) $^{8}$Be reaction was claimed and interpreted as the production and subsequent decay of a hypothetical particle (X17). Similar excesse
Externí odkaz:
http://arxiv.org/abs/2411.07994
Autor:
Pervakov, K. S., Sadakov, A. V., Sobolevskiy, O. A., Vlasenko, V. A., Martovitsky, V. P., Sedov, E. A., Maltsev, E. I., Perez, N., Veyrat, L., Grigoriev, P. D., Pavlov, N. S., Nekrasov, I. A., Tereshchenko, O. E., Golyashov, V. A., Pudalov, V. M.
Here, by applying a comprehensive approach including magnetic, transport measurements, ARPES band structure measurements, DFT calculations, and analytical theory consideration, we unveil the puzzling origin of the negative isotropic magnetoresistance
Externí odkaz:
http://arxiv.org/abs/2411.03971
We propose a presymplectic BV-AKSZ sigma model encoding the ghost free massive bigravity theory action as well as its Batalin-Vilkovisky extension in terms of the finite-dimensional graded geometry of the target space. A characteristic feature of the
Externí odkaz:
http://arxiv.org/abs/2410.13075
Part II of the present work concerns modeling and analyzing the experimental data obtained in Part I. A computational fluid dynamics (CFD) model of two-dimensional conductive heat transfer and thermocapillary-driven convection is developed. The conse
Externí odkaz:
http://arxiv.org/abs/2409.18226
Study of the $\mu$ Cet Binary with Speckle Interferometric, Photometric and Spectroscopic Techniques
Autor:
Dyachenko, V. V., Yakunin, I. A., Bayazitov, R. M., Grigoriev, S. A., Ryabchikova, T. A., Pakhomov, Yu. V., Semenko, E. A., Beskakotov, A. S., Mitrofanova, A. A., Maksimov, A. F., Balega, Yu. Yu.
We present a refined speckle-interferometric orbit of a binary system $\mu$ Cet, with the main component studied based on the analysis of photometric and spectroscopic data, obtained at the SAO RAS 6-m telescope. The object was initially classified a
Externí odkaz:
http://arxiv.org/abs/2409.15063
We study the scattering of edge states of 2D topological insulator (TI) in the uniform external magnetic field due to edge imperfections, common in realistic 2D TI samples. The external magnetic field breaks time reversal (TR) symmetry, opening the p
Externí odkaz:
http://arxiv.org/abs/2408.14540
Autor:
Grigoriev, Maxim, Rudinsky, Dmitry
Gauge PDEs generalise AKSZ sigma models to the case of general local gauge theories. Despite being very flexible and invariant these geometrical objects are usually infinite-dimensional and are difficult to define explicitly, just like standard infin
Externí odkaz:
http://arxiv.org/abs/2408.08287