Factorization theorem, gluon poles and new contributions in semi-inclusive processes
I.V. Anikin, O.V. Teryaev
TL;DR
This paper explores the significance of gluon poles and gauge invariance in the hadron tensors of Drell-Yan and direct photon production processes involving transversely polarized hadrons.
Contribution
It introduces new insights into the role of gluon poles and gauge invariance in semi-inclusive processes, enhancing understanding of hadron tensor structures.
Findings
Gluon poles are crucial for understanding spin asymmetries.
Gauge invariance constrains the form of hadron tensors.
New contributions to semi-inclusive process calculations.
Abstract
We discuss the role of gluon poles and the gauge invariance for the hadron tensors of Drell-Yan and direct photon production processes with the transversely polarized hadron.
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