3 papers
hep-ph2015
The QCD evolution of TMD in the covariant approach
A. V. Efremov, O. V. Teryaev, P. Zavada
The procedure for calculation of the QCD evolution of transverse momentum dependent distributions within the covariant approach is suggested. The standard collinear QCD evolution t…
hep-ph2002
The chirally-odd twist-3 distribution e(x)
A. V. Efremov, P. Schweitzer
Properties of the nucleon twist-3 distribution function e(x) are reviewed. It is emphasized that the QCD equations of motion imply the existence of a delta-function at x=0 in e(x),…
hep-ph2002
Erratum to "Azimuthal asymmetry in electro-production of neutral pions in semi-inclusive DIS" published in Phys. Lett. B522 (2001) 37
A. V. Efremov, K. Goeke, P. Schweitzer
We correct our analysis of the HERMES experiment for the azimuthal sin(phi)-spin asymmetry in semi-inclusive hadroproduction in DIS on longitudinally (with respect to the lepton mo…