Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Godunov, S."'
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
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
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
Autor:
Godunov, S. I., Karkaryan, E. K., Novikov, V. A., Rozanov, A. N., Vysotsky, M. I., Zhemchugov, E. V.
Publikováno v:
Phys. Rev. D 103, 035016 (2021)
In the relatively recent CMS data, there is a hint on the existence of a resonance with the mass 28 GeV coupling to muons. Such a resonance should also couple to photons through the fermion loop, therefore it can be searched for in ultraperipheral co
Externí odkaz:
http://arxiv.org/abs/2012.01599
Publikováno v:
J. High Energ. Phys. 2020, 143 (2020)
We propose a model-independent approach for the search of charged long-lived particles produced in ultraperipheral collisions at the LHC. The main idea is to improve event reconstruction at ATLAS and CMS with the help of their forward detectors. Dete
Externí odkaz:
http://arxiv.org/abs/1906.08568
Akademický článek
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We discuss if the resonance recently observed by CMS can be responsible for the deviation of the experimentally measured muon anomalous magnetic moment from the theoretical prediction.
Comment: 11 pages, 2 figures, 2 tables
Comment: 11 pages, 2 figures, 2 tables
Externí odkaz:
http://arxiv.org/abs/1808.02431