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arXiv · 2011.14566

Parton Interpretation and Twist-4 Parton Distributions

J. P. Ma·Z. Y. Pang·G. P. Zhang
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Abstract

Through explicit examples we show that twist-4 parton distributions have no parton interpretation in the sense that parton or partons inside a hadron can carry the momentum fraction $x$ of the hadron with $x >1$ or $x<-1$. The studied twist-4 parton distributions of collinear factoization are power-divergent for $\vert x\vert >1$. The corresponding transverse momentum dependent parton distributions have also no parton interpretation. They are finite. The implications of our results are discussed.

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J. P. Ma, Z. Y. Pang, G. P. Zhang. 2021-08-04. Parton Interpretation and Twist-4 Parton Distributions. https://doi.org/10.1016/j.physletb.2021.136472

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