Zobrazeno 1 - 10
of 1 762
pro vyhledávání: '"A. A. Vysotsky"'
For a Markov chain $Y$ with values in a Polish space, consider the entrance chain obtained by sampling $Y$ at the moments when it enters a fixed set $A$ from its complement $A^c$. Similarly, consider the exit chain, obtained by sampling $Y$ at the ex
Externí odkaz:
http://arxiv.org/abs/2403.00619
Autor:
Godunov, S. I., Karkaryan, E. K., Novikov, V. A., Rozanov, A. N., Vysotsky, M. I., Zhemchugov, E. V.
Production of heavy fermions in ultraperipheral collisions ($pp\to p+\gamma\gamma+p\to p+\chi^{+}\chi^{-}+p$) and the semiexclusive reaction ($pp \to p+\gamma\gamma^{*}+X \to p+\chi^{+}\chi^{-}+X$) is considered. Differential and total cross sections
Externí odkaz:
http://arxiv.org/abs/2311.06636
Autor:
Zhemchugov, E. V., Godunov, S. I., Karkaryan, E. K., Novikov, V. A., Rozanov, A. N., Vysotsky, M. I.
Publikováno v:
Computer Physics Communications, 305, 109347 (2024)
The library provides a set of C++/Python functions for computing cross sections of ultraperipheral collisions of high energy particles under the equivalent photons approximation. Cross sections are represented through multiple integrals over the phas
Externí odkaz:
http://arxiv.org/abs/2311.01353
Autor:
Godunov, S. I., Karkaryan, E. K., Novikov, V. A., Rozanov, A. N., Vysotsky, M. I., Zhemchugov, E. V.
Analytical formulas describing the correction due to the $Z$ boson exchange to the cross section of the reaction $pp\rightarrow p\mu^+\mu^- X$ are presented. When the invariant mass of the produced muon pair $W\gtrsim 150~\text{GeV}$ and its total tr
Externí odkaz:
http://arxiv.org/abs/2308.01169
Autor:
Godunov, S. I., Karkaryan, E. K., Novikov, V. A., Rozanov, A. N., Vysotsky, M. I., Zhemchugov, E. V.
Publikováno v:
Eur. Phys. J. C 82, 1055 (2022)
Analytical formulas for the cross section of the reaction $pp \to p + \ell^+ \ell^- + X$ are presented. Fiducial cross sections are compared with those measured recently by the ATLAS collaboration.
Comment: 13 pages, 1 figure; updated according
Comment: 13 pages, 1 figure; updated according
Externí odkaz:
http://arxiv.org/abs/2207.07157
Publikováno v:
Учёные записки Санкт-Петербургского государственного медицинского университета им. Акад. И.П. Павлова, Vol 30, Iss 2, Pp 40-46 (2023)
Cardiovascular system is a significant target for SARS-CoV-2.The objective was to study morphological changes in the heart in patients who died from COVID-19.Materials and methods. Autopsy material of the heart of those who died from COVID-19 (700 au
Externí odkaz:
https://doaj.org/article/b9efedb5660e4eceabca2099d4320235
Autor:
Godunov, S. I., Karkaryan, E. K., Novikov, V. A., Rozanov, A. N., Vysotsky, M. I., Zhemchugov, E. V.
Dilepton production in proton-proton collision through $\gamma\gamma$-fusion with one proton scattered elastically while the second produces a hadron jet is considered. Semi-analytical formulas describing the cross section of a muon pair production a
Externí odkaz:
http://arxiv.org/abs/2112.01870
Autor:
Zhemchugov, E.V., Godunov, S.I., Karkaryan, E.K., Novikov, V.A., Rozanov, A.N., Vysotsky, M.I.
Publikováno v:
In Computer Physics Communications December 2024 305
In this paper we present a new release of the FIESTA program (Feynman Integral Evaluation by a Sector decomposiTion Approach). FIESTA5 is performance-oriented - we implemented improvements of various kinds in order to make Feynman integral evaluation
Externí odkaz:
http://arxiv.org/abs/2110.11660
Publikováno v:
J. High Energ. Phys. 2021, 234 (2021)
Ultraperipheral collisions of high energy protons are a source of approximately real photons colliding with each other. Photon fusion can result in production of yet unknown charged particles in very clean events. The cleanliness of such an event is
Externí odkaz:
http://arxiv.org/abs/2106.14842