Zobrazeno 1 - 10
of 267
pro vyhledávání: '"P A, Levkov"'
Publikováno v:
Phys. Part. Nuclei Lett. 20, 229-232 (2023)
We study multiparticle production in the unbroken $(3+1)$-dimensional $\lambda\phi^4$ theory using the semiclassical method of singular solutions. We show that the probabilities of these processes are exponentially suppressed in terms of a small coup
Externí odkaz:
http://arxiv.org/abs/2307.11163
We analytically solve the problem of Bose star growth in the bath of gravitationally interacting particles. We find that after nucleation of this object the bath is described by a self-similar solution of kinetic equation. Together with the conservat
Externí odkaz:
http://arxiv.org/abs/2305.01005
Autor:
Slađana Popović, Danijela Vidaković, Zlatko Levkov, Olga Jakovljević, Nataša Nikolić, Gordana Subakov Simić, Jelena Krizmanić
Publikováno v:
Acta Carsologica, Vol 53, Iss 1 (2024)
Research of cave-dwelling diatoms is lacking. In these extreme environments, diatoms are restricted to illuminated zones, and are found at the entrance zone and in the lampenflora community. However, the number of identified species is constantly inc
Externí odkaz:
https://doaj.org/article/23d4e476b85c4108b397115aab843d5b
Autor:
Yana Yemchenko, Kateryna Bardova, Oleh Akimov, Anatolii Levkov, Heorhii Kostenko, Viktoriia Kostenko, Artur Mishchenko, Natalia Solovyova, Vitalii Kostenko
Publikováno v:
Surgical & Cosmetic Dermatology, Vol 16 (2024)
In recent years, the use of probiotics in dermatology and cosmetology has been demonstrating a notable rise, offering both preventive and therapeutic benefits for the skin. The intestinal microbiota plays crucial roles, including enzymatic degradatio
Externí odkaz:
https://doaj.org/article/a3ec6cd7ce124760b6303e9362ba941b
Publikováno v:
J. High Energ. Phys. 2023, 205 (2023)
We compute the probability of producing $n$ particles from few colliding particles in the unbroken $(3+1)$-dimensional $\lambda\phi^4$ theory. To this end we numerically implement semiclassical method of singular solutions which works at ${n \gg 1}$
Externí odkaz:
http://arxiv.org/abs/2212.03268
Publikováno v:
Phys. Rev. D 105, 063019 (2022)
Black holes with masses $\approx 1\, M_{\odot}$ cannot be produced via stellar evolution. A popular scenario of their formation involves transmutation of neutron stars - by accumulation of dark matter triggering gravitational collapse in the star cen
Externí odkaz:
http://arxiv.org/abs/2112.09716
Publikováno v:
Jetp Lett. 114 (2021) 649 [Pisma Zh.Eksp.Teor.Fiz. 114 (2021) 723]
We develop a numerical method to compute the probabilities of multiparticle production in weakly coupled scalar theories. Our technique is based on D.T. Son's semiclassical method of singular solutions. Applying it to the process $1 \to n$ in the unb
Externí odkaz:
http://arxiv.org/abs/2111.04760
Autor:
Éva Ács, Tibor Bíró, Emil Boros, Péter Dobosy, Mónika Duleba, Angéla Földi, Keve T. Kiss, Zlatko Levkov, Péter Orgoványi, Orsolya Pálné Szén, Zsuzsa Trábert, Edit Vadkerti, István Grigorszky
Publikováno v:
Metabarcoding and Metagenomics, Vol 7, Iss , Pp 413-438 (2023)
The research presented investigates whether DNA-based metabarcoding can replace the morphology-based identification of diatom taxa in the ecological status assessments of aquatic habitats. When comparing data obtained with microscopy and metabarcodin
Externí odkaz:
https://doaj.org/article/6fa481b7080c44dc85de7232f6538bce
Publikováno v:
Phys. Rev. D 104, 023504 (2021)
Light bosonic (axion-like) dark matter may form Bose stars - clumps of nonrelativistic Bose-Einstein condensate supported by self-gravity. We study rotating Bose stars composed of condensed particles with nonzero angular momentum $l$. We analytically
Externí odkaz:
http://arxiv.org/abs/2104.00962
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 14, Iss 1, Pp 834-849 (2023)
Ion beam processes related to focused ion beam milling, surface patterning, and secondary ion mass spectrometry require precision and control. Quality and cleanliness of the sample are also crucial factors. Furthermore, several domains of nanotechnol
Externí odkaz:
https://doaj.org/article/09e7e6ff8d9348d89a7006fdef71e39a