Zobrazeno 1 - 10
of 644
pro vyhledávání: '"Faustov, R."'
Publikováno v:
Symmetry 2022, 14(12), 2504
Masses of the ground and excited (1P, 2S, 1D, 2P, 3S) states of the fully-heavy tetraquarks, composed of charm ($c$) and bottom ($b$) quarks and antiquarks, are calculated in the diquark-antidiquark picture within the relativistic quark model based o
Externí odkaz:
http://arxiv.org/abs/2210.16015
Rare decay process of the Higgs boson into a pair of $J/\Psi$ and $\Upsilon$ particles is studied within perturbative Standard Model and relativistic quark model. The relativistic corrections connected with the relative motion of quarks are calculate
Externí odkaz:
http://arxiv.org/abs/2209.12321
Recently the LHCb collaboration put the upper limit on the $\Xi^{-}_{b} \rightarrow \Xi^{-}\gamma$ decay branching ratio $Br(\Xi^{-}_{b} \rightarrow \Xi^{-}\gamma)< 1.3\times 10^{-4}$. The measured value is below the light-cone sum rule prediction. I
Externí odkaz:
http://arxiv.org/abs/2208.00833
The form factors of the semileptonic $B$, $B_s$ and $B_c$ meson decays are calculated in the framework of the relativistic quark model based on the quasipotential approach in QCD. They are expressed through the overlap integrals of the meson wave fun
Externí odkaz:
http://arxiv.org/abs/2206.10277
The ground state hyperfine splitting of light muon-electron ions of lithium, beryllium, boron and helium is calculated on the basis of analytical perturbation theory in terms of small parameters of the fine structure constant and electron-muon mass r
Externí odkaz:
http://arxiv.org/abs/2203.03599
A hadronic vacuum polarization correction to the photon propagator is found by using the Dubnicka-Meshcheryakov parameterization of the pion electromagnetic form factor and new experimental data on the $e^+e^-$ hadrons annihilation cross section. The
Externí odkaz:
http://arxiv.org/abs/2112.14116
Autor:
Faustov, R. N., Galkin, V. O.
Triply heavy baryons are investigated in the framework of the relativistic quark model based on the quark-diquark picture in the quasipotential approach in QCD. Masses of the ground and excited states of the $\Omega_{ccc}$, $\Omega_{bbb}$, $\Omega_{c
Externí odkaz:
http://arxiv.org/abs/2111.07702
We investigate the rare production of the pair of $S-$ and $P-$ wave $B_c$-meson in the Higgs boson decay in the perturbative Standard Model and relativistic quark model. Relativistic amplitudes and decay widths are constructed with the account of th
Externí odkaz:
http://arxiv.org/abs/2108.09334
Publikováno v:
Universe 7 (2021) 4, 94
We give a review of the calculations of the masses of tetraquarks with two and four heavy quarks in the framework of the relativistic quark model based on the quasipotential approach and QCD. The diquark-antidiquark picture of heavy tetraquarks is us
Externí odkaz:
http://arxiv.org/abs/2103.01763
Publikováno v:
Phys. Rev. A 102, 062820 (2020)
The energy interval $ (3S-1S) $ in muonic hydrogen is calculated on the basis of quasipotential approach in quantum electrodynamics. We take into account different corrections of orders $\alpha^3\div \alpha^6 $, which are determined by relativistic e
Externí odkaz:
http://arxiv.org/abs/2010.07380