Determination of the Collins-Soper kernel from Lattice QCD
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911774829182976 |
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| author | Avkhadiev, Artur Shanahan, Phiala E. Wagman, Michael L. Zhao, Yong |
| author_facet | Avkhadiev, Artur Shanahan, Phiala E. Wagman, Michael L. Zhao, Yong |
| contents | This work presents a determination of the quark Collins-Soper kernel, which relates transverse-momentum-dependent parton distributions (TMDs) at different rapidity scales, using lattice quantum chromodynamics (QCD). This is the first such determination with systematic control of quark mass, operator mixing, and discretization effects. Next-to-next-to-leading logarithmic matching is used to match lattice-calculable distributions to the corresponding TMDs. The continuum-extrapolated lattice QCD results are consistent with several recent phenomenological parameterizations of the Collins-Soper kernel and are precise enough to disfavor other parameterizations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_06725 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Determination of the Collins-Soper kernel from Lattice QCD Avkhadiev, Artur Shanahan, Phiala E. Wagman, Michael L. Zhao, Yong High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory This work presents a determination of the quark Collins-Soper kernel, which relates transverse-momentum-dependent parton distributions (TMDs) at different rapidity scales, using lattice quantum chromodynamics (QCD). This is the first such determination with systematic control of quark mass, operator mixing, and discretization effects. Next-to-next-to-leading logarithmic matching is used to match lattice-calculable distributions to the corresponding TMDs. The continuum-extrapolated lattice QCD results are consistent with several recent phenomenological parameterizations of the Collins-Soper kernel and are precise enough to disfavor other parameterizations. |
| title | Determination of the Collins-Soper kernel from Lattice QCD |
| topic | High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2402.06725 |