| Published Version Download ( PDF | 919kB) | License: Creative Commons Attribution Non-commercial 4.0 | |
| Published Version Download ( XML | 136kB) | License: Creative Commons Attribution 4.0 |
Universality of the Collins-Soper kernel in lattice calculations
Shu, Hai-Tao
, Schlemmer, Maximilian, Sizmann, Tobias, Vladimirov, Alexey
, Walter, Lisa, Engelhardt, Michael, Schäfer, Andreas
and Yang, Yi-Bo
(2023)
Universality of the Collins-Soper kernel in lattice calculations.
Physical Review D 108 (7), 074519.
Date of publication of this fulltext: 08 Feb 2024 13:31
Article
DOI to cite this document: 10.5283/epub.55437
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 ...
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.
Involved Institutions
Details
| Item type | Article | ||||
| Journal or Publication Title | Physical Review D | ||||
| Publisher: | American Physical Society | ||||
|---|---|---|---|---|---|
| Open Access Type: | SCOAP3 | ||||
| Volume: | 108 | ||||
| Number of Issue or Book Chapter: | 7 | ||||
| Page Range: | 074519 | ||||
| Date | 31 October 2023 | ||||
| Institutions | Physics > Institute of Theroretical Physics > Chair Professor Schäfer > Group Andreas Schäfer | ||||
| Identification Number |
| ||||
| Dewey Decimal Classification | 500 Science > 530 Physics | ||||
| Status | Published | ||||
| Refereed | Yes, this version has been refereed | ||||
| Created at the University of Regensburg | Partially | ||||
| URN of the UB Regensburg | urn:nbn:de:bvb:355-epub-554374 | ||||
| Item ID | 55437 |
Download Statistics
Download Statistics