Zobrazeno 1 - 10
of 264
pro vyhledávání: '"Valery E. Lyubovitskij"'
Autor:
Valery E. Lyubovitskij, Ivan Schmidt
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 5, Pp 1-11 (2023)
Abstract Quantum chromodynamics (QCD) rigorously predicts the existence of both nonperturbative intrinsic and perturbative extrinsic heavy quark contents of nucleons. In this article we discuss the heavy quark electroproduction on protons induced by
Externí odkaz:
https://doaj.org/article/0ee2a05665dc4c43993bbaa9a8c29b2b
Autor:
Claudio O. Dib, Juan Carlos Helo, Valery E. Lyubovitskij, Nicolás A. Neill, Abner Soffer, Zeren Simon Wang
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 2, Pp 1-31 (2023)
Abstract We propose a search for B meson decays to a baryon plus missing energy at the Belle II experiment to probe supersymmetry with a GeV-scale lightest neutralino χ ~ 1 0 $$ {\overset{\sim }{\chi}}_1^0 $$ and R-parity violation (RPV). We perform
Externí odkaz:
https://doaj.org/article/36f683f2c7ef4ea8bb16d82720bf8b4c
Autor:
Yury S. Surovtsev, Petr Bydžovský, Thomas Gutsche, Robert Kamiński, Valery E. Lyubovitskij, Miroslav Nagy
Publikováno v:
Particles, Vol 5, Iss 3, Pp 210-224 (2022)
We study the process γγ→π0π0 involving the principal mechanisms, the structure of its cross section and the role of individual isoscalar-tensor resonances in the saturation of its energy spectrum.
Externí odkaz:
https://doaj.org/article/e5774380df824e3189f3528fb117d6aa
Autor:
Valery E. Lyubovitskij, Ivan Schmidt
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-1 (2023)
A correction to this paper has been published: https://doi.org/10.1007/JHEP05(2023)054
Externí odkaz:
https://doaj.org/article/0b433f0bdffa46f1b7417f11f3107194
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 6, Pp 1-128 (2021)
Abstract We discuss new ideas for consideration of loop diagrams and angular integrals in D-dimensions in QCD. In case of loop diagrams, we propose the covariant formalism of expansion of tensorial loop integrals into the orthogonal basis of linear c
Externí odkaz:
https://doaj.org/article/39d190c7e0c04037a6a24b682c04d929
Publikováno v:
Particles, Vol 3, Iss 4, Pp 719-728 (2020)
We discuss constraints on soft CP-violating couplings of axion-like particles with photon and fermions by using data on electric dipole moments of standard model particles. In particular, for the axion-like particle (ALP) leptophilic scenario, we der
Externí odkaz:
https://doaj.org/article/c23c9062ae7c4d828c788c0dc5668e30
Publikováno v:
Physics Letters B, Vol 824, Iss , Pp 136812- (2022)
We address novel features of deep inelastic lepton scattering on nuclei at small Bjorken variable xBj. In this regime the lepton-nuclear cross section involves the interference between the standard lepton-quark scattering amplitude for the deep inela
Externí odkaz:
https://doaj.org/article/31364a2fdd9a45d29fdb4ec3ca008ad0
Publikováno v:
Physics Letters B, Vol 824, Iss , Pp 136801- (2022)
The cross section for deep inelastic lepton-proton scattering (DIS) ℓp→ℓ′X includes a diffractive deep inelastic (DDIS) contribution ℓp→ℓ′p′X, in which the proton remains intact with a large longitudinal momentum fraction xF greater
Externí odkaz:
https://doaj.org/article/a74daba170f24b68b6e8dd7db29c1212
Publikováno v:
Particles, Vol 2, Iss 2, Pp 339-356 (2019)
The recent discovery of double charm baryon states by the LHCb Collaborarion and their high precision mass determination calls for a comprehensive analysis of the nonleptonic decays of double and single heavy baryons. Nonleptonic baryon decays play a
Externí odkaz:
https://doaj.org/article/cc3c829aca41408393f58bac8635022a
Publikováno v:
Nuclear Physics B, Vol 952, Iss , Pp - (2020)
We present a study of the nucleon electromagnetic form factors and of the Roper-nucleon transition at finite small temperature T, using an extended version of a soft-wall AdS/QCD approach developed by us previously. In the action we introduce the eff
Externí odkaz:
https://doaj.org/article/6d22987ae44844b693db46e598429871