Transverse momentum dependent parton quasidistributions

URN to cite this document:: urn:nbn:de:bvb:355-epub-455021
DOI to cite this document:: 10.5283/epub.45502

Ji, Xiangdong ; Jin, Lu-Chang ; Yuan, Feng ; Zhang, Jian-Hui ; Zhao, Yong

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Date of publication of this fulltext: 06 Apr 2021 13:14

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Abstract

We investigate the transverse momentum dependent parton distributions (TMDs) in the parton quasidistributions framework. The longstanding hurdle of the so-called pinch pole singularity from the spacelike gauge links in the TMD definitions can be resolved by the finite length of the gauge link along the hadron moving direction. In addition, with the soft factor subtraction, the quasi-TMD is free ...