arXiv subjects

E. A. Choban

Publications and source records attributed to E. A. Choban.

3 recordsLinked to original sources

arXiv2003

Dirac equation in the confining SU(3)-Yang-Mills field and the relativistic effects in quarkonia spectra

The recently obtained solutions of Dirac equation in the confining SU(3)-Yang-Mills field in Minkowski spacetime are applied to describe the energy spectra of quarkonia (charmonium and bottomonium). The nonrelativistic limit is considered for the relativistic effects to be estimated in a self-consistent way and it is shown that the given effects are extremely important for both the energy spectra and the confinement mechanism.

hep-ph↗

arXiv2003

Registration of hydrogen-like leptonic bound states (e^- mu^+) and (e^+ mu^-) in reactions of high-energy scattering of polarized electrons and positrons by nuclei with Z ~ 100 and analysis of CPT invariance

The cross sections for the reactions of muonium(anti-muonium) production in high energy electron(positron) scattering by nuclei e^-(e^+) + Z -> Z + M^0(anti-M^0) + mu^-(mu^+) are calculated in dependence on an energy and polarization of an initial electron(positron) and a polarization of a final mu^-(mu^+)-meson. Due to coherent phenomenon the cross sections are proportional to Z^2. For Z ~ 100 due to the factor Z^2 the cross sections are large enough to be measured at energies available at the HERA Collider in DESY. The results are discussed in connection with a test of CPT invariance.

hep-ph↗

arXiv2002

Verification of CPT-invariance of QED bound states for the production of muonium or antimuonium in scattering of electrons or positrons by nuclei

A possibility of a verification of CPT-invariance of QED for bound states by example of muonium or antimuonium produced in reactions of scattering of electrons or positrons by nuclei is considered. The number of events of the muonium production is estimated for contemporary accelerators. The method of the detection of muonium by measuring of oscillations of the decay curve caused by the interference between the ground and excited state of muonium is suggested. The admixture of the excited muonium to the final state is calculated.

hep-ph↗