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arXiv · 2407.13804

TMD factorization bridging large and small x

Swagato Mukherjee·Vladimir Skokov·Andrey Tarasov·Shaswat Tiwari
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Abstract

QCD factorization takes different forms in the large-x and small-x regimes. At large-x, collinear factorization leads to the DGLAP evolution equation, while at small-x, rapidity factorization results in the BFKL equation. To unify these different regimes, a new TMD factorization based on the background field method is proposed. This factorization not only reduces to CSS and DGLAP in the large-x limit and BFKL in the small-x limit, but also defines a general evolution away from these regimes.

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Swagato Mukherjee, Vladimir Skokov, Andrey Tarasov, Shaswat Tiwari. 2024-07-17. TMD factorization bridging large and small x. https://arxiv.org/abs/2407.13804

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