136 citations · 552 across the 12 of their papers we have counts for
11 papers
Lorentz invariance relations and Wandzura-Wilczek approximation
T. Teckentrup, A. Metz, P. Schweitzer
A complete list of the so-called Lorentz invariance relations between parton distribution functions is given and some of their consequences are discussed, such as the Burkhardt-Cot…
Recent developments in nucleon spin structure with focus on h_{1L}^{\perp} and pretzelosity h_{1T}^\perp
H. Avakian, A. V. Efremov, P. Schweitzer +2
The leading twist transverse momentum dependent parton distribution functions h_{1L}^{\perp} and h_{1T}^\perp, which is sometimes called "pretzelosity," are studied. For h_{1L}^{\p…
Lorentz invariance relations between parton distributions and the Wandzura-Wilczek approximation
A. Metz, P. Schweitzer, T. Teckentrup
The violation of the so-called Lorentz invariance relations between parton distribution functions is considered in a model independent way. It is shown that these relations are not…
Are there approximate relations among transverse momentum dependent distribution functions?
H. Avakian, A. V. Efremov, K. Goeke +3
Certain exact relations among transverse momentum dependent parton distribution functions due to QCD equations of motion turn into approximate ones upon the neglect of pure twist-3…
Light-cone divergence in twist-3 correlation functions
L. P. Gamberg, D. S. Hwang, A. Metz +1
It is argued that the definition of the twist-3 transverse momentum dependent correlation functions must be modified if they contain light-like Wilson lines. In the framework of a…
Sivers effect in semi-inclusive deeply inelastic scattering and Drell-Yan
J. C. Collins, A. V. Efremov, K. Goeke +5
The Sivers function is extracted from HERMES data on single spin asymmetries in semi-inclusive deeply inelastic scattering. The result is used for making predictions for the Sivers…