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Polarized antiquark flavor asymmetry in Drell-Yan pair production
B. Dressler, K. Goeke, M. V. Polyakov +3
We investigate the role of the flavor asymmetry of the nucleon's polarized antiquark distributions in Drell-Yan lepton pair production in polarized nucleon-nucleon collisions at HE…
Flavor asymmetry of polarized antiquark distributions and semi-inclusive DIS
B. Dressler, K. Goeke, M. V. Polyakov +1
The -expansion of QCD suggests large flavor asymmetries of the polarized antiquark distributions in the nucleon. This is confirmed by model calculations in the large- l…
NLO corrections and contribution of a tensor gluon operator to the process
N. Kivel, L. Mankiewicz, M. V. Polyakov
We have calculated the NLO corrections for the leading twist amplitude of the reaction at large virtuality of the photon and at . With a simple model for th…
Nucleon matrix elements of twist-3 and 4 operators from the instanton vacuum
J. Balla, M. V. Polyakov, C. Weiss
The spin-dependent twist-3 and 4 nucleon matrix elements d^(2) and f^(2) describing power corrections to the Bjorken and Ellis-Jaffe sum rules are computed in the instanton vacuum.…