A new resummation of the Sommerfeld-Gamow-Sakharov factor ($S$-factor)
of a composite system of two relativistic spin-1/2 particles of arbitrary masses interacting via a Coulomb-like chromodynamical potential is presented. The analysis is performed in the framework of a relativistic quasipotential approach based on the Hamiltonian formulation of the covariant quantum field theory in the ...
We present the basic non-perturbative structure of the space of classical dynamical solutions and corresponding one particle quantum states in SU(3) QCD. The Weyl group, as a non-trivial color subgroup of SU(3) , admits non-trivial singlet irreducible representations which lead to strict concepts of one particle quantum states for gluons and quarks. We show that a full space of dynamical gluon...
In this work, we consider the transverse polarization (PN) of Λ-hyperons and the corresponding antihyperons, which are produced in meson-proton and meson-nuclear interactions in inclusive reactions. The currently available experimental data are compared with calculations based on the chromomagnetic polarization of quark (CPQ) model. Calculations based on the CPQ model have also been performed...
We present measurements of charmonia production cross sections in e+e- annihilation at center-of-mass energies from 3.81 GeV to 4.95 GeV at BESIII. The number of observed vector states in this energy region exceeds that of the predicted vector charmonium states. These features suggest that some of these supernumerary vector states are candidates of an exotic nature. To clarify the nature of...
Proton polarimetry at RHIC in energy range from 1 keV to 255 GeV will be reviewed
Development of a new absolute polarimeter for 3He++ ion beam will also be presented.
We describe the implementation of processes of photon-photon collisions with arbitrary polarization in ReneSANCe Monte Carlo generator. Numerical results for a number of the Standard Model processes will be shown.
We investigate the effects of complete one-loop electroweak radiative corrections and higher-order radiative effects to the total cross section and analyze different types of asymmetries for polarized initial and final states for typical energies and degrees of polarization of the ILC and CLIC projects. Numerical results are obtained with the help of Monte Carlo tools: the ReneSANCe event...
Polarization effects of initial and final states for the process of Z-pair production at future Higgs-fabriques are investigated at one-loop EW level. Some advanced theoretical techniques to deal with massive particles are developed and applied.
The process gamma + gamma \to Z + H
is described within the SANC system at the one-loop accuracy level.
The corresponding covariant and helicity amplitudes are presented.
We have proposed methods for measuring of the Sachs form factors ratio based on the polarization transfer from the initial proton to the final electron or proton in the elastic $e \vec p \to \vec e p$ or $e \vec p \to e \vec p$ processes in the case of parallel spins.
