Universality of the Collins-Soper kernel in lattice calculations
Shu, Hai-Tao
, Schlemmer, Maximilian, Sizmann, Tobias, Vladimirov, Alexey
, Walter, Lisa, Engelhardt, Michael, Schäfer, Andreas
und Yang, Yi-Bo
(2023)
Universality of the Collins-Soper kernel in lattice calculations.
Physical Review D 108 (7), 074519.
Veröffentlichungsdatum dieses Volltextes: 08 Feb 2024 13:31
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.55437
Zusammenfassung
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 ...
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 Nf=2+1 clover-improved Wilson fermions. Our analyses demonstrate the consistency of different lattice extractions of the CS kernel for mesons and baryons, as well as for twist-two and twist-three operators, even though lattice artifacts could be significant. This consistency corroborates the universality of the lattice-determined CS kernel and suggests that a high-precision determination of it is in reach.
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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Physical Review D | ||||
| Verlag: | American Physical Society | ||||
|---|---|---|---|---|---|
| Band: | 108 | ||||
| Nummer des Zeitschriftenheftes oder des Kapitels: | 7 | ||||
| Seitenbereich: | 074519 | ||||
| Datum | 31 Oktober 2023 | ||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Schäfer > Arbeitsgruppe Andreas Schäfer | ||||
| Identifikationsnummer |
| ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Zum Teil | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-554374 | ||||
| Dokumenten-ID | 55437 |
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