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arXiv · hep-ph/0411382

Factorization of Large-x Quark Distributions in a Hadron

Xiangdong Ji·Jian-Ping Ma·Feng Yuan
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Abstract

We present a factorization formula for valence quark distributions in a hadron in x-->1 limit. For the example of pion, we arrive at the form of factorization by analyzing momentum flow in the leading and high-order Feynman diagrams. The result confirms the well-known 1-x scaling rule to all orders in perturbation theory, providing the non-perturbative matrix elements for the infrared-divergence factors. We comment on re-summation of perturbative single and double logarithms in 1-x.

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Xiangdong Ji, Jian-Ping Ma, Feng Yuan. 2004-11-30. Factorization of Large-x Quark Distributions in a Hadron. https://doi.org/10.1016/j.physletb.2005.02.019

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