Universality of the Collins-Soper kernel in lattice calculations

URN to cite this document:: urn:nbn:de:bvb:355-epub-554374
DOI to cite this document:: 10.5283/epub.55437

Shu, Hai-Tao

; Schlemmer, Maximilian ; Sizmann, Tobias ; Vladimirov, Alexey

; Walter, Lisa

; Engelhardt, Michael ; Schäfer, Andreas

; Yang, Yi-Bo

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Date of publication of this fulltext: 08 Feb 2024 13:31

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Abstract

The Collins-Soper (CS) kernel is a nonperturbative function that characterizes the rapidity evolution of transverse-momentum-dependent parton distribution functions (TMDPDFs) and wave functions. In this paper, we calculate the CS kernel for pion and proton targets and for quasi-TMDPDFs of leading and next-to-leading power. The calculations are carried out on the CLS ensemble H101 with dynamical ...