5 papers
On the Gauge Invariance of the Z-Boson Mass
J. Gegelia, G. Japaridze, A. Tkabladze +2
The different schemes for the definition of the Z boson mass are analyzed. It is shown that the scheme, defining the mass as pole of the real part of the Z boson propagator and the…
Color Octet Contribution to J/psi Photoproduction Asymmetries
George Japaridze, Wolf-Dieter Nowak, Avto Tkabladze
We investigate photoproduction asymmetries in the framework of the NRQCD factorization approach. It is shown that the color octet contribution leads to large uncertainties in…
Theoretical status of the B_c meson
S. S. Gershtein, V. V. Kiselev, A. K. Likhoded +3
Theoretical predictions on the meson properties are reviewed.
Double Spin Asymmetries in Charmonium Hadroproduction at HERA-
W. -D. Nowak, O. Teryaev, A. Tkabladze
We discuss the double spin asymmetries in charmonium hadroproduction with nonzero transverse momenta at fixed target energies, GeV, within the framework of the f…
Color-Octet Contribution to Hadroproduction with Nonzero at Fixed Target Energies
Leonid Slepchenko, Avto Tkabladze
We calculated the color-octet contribution to the $\ps$ hadroproduction at fixed target energies GeV. We consider the $\ps$ production with transverse momenta wh…