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arXiv · hep-ph/0302028

Lorentz invariance relations among parton distributions revisited

K. Goeke·A. Metz·P. V. Pobylitsa·M. V. Polyakov
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Abstract

We revisit the derivation of the so-called Lorentz invariance relations between parton distributions. In the most important cases these relations involve twist-3 and transverse momentum dependent parton distributions. It is shown that these relations are violated if the path-ordered exponential is taken into account in the quark correlator.

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K. Goeke, A. Metz, P. V. Pobylitsa, M. V. Polyakov. 2003-06-16. Lorentz invariance relations among parton distributions revisited. https://doi.org/10.1016/s0370-2693(03)00870-0

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