Global fits of proton PDFs with non-linear corrections from gluon recombination
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916293964201984 |
|---|---|
| author | Duwentäster, Pit Guzey, Vadim Helenius, Ilkka Paukkunen, Hannu |
| author_facet | Duwentäster, Pit Guzey, Vadim Helenius, Ilkka Paukkunen, Hannu |
| contents | We present numerical studies of the leading non-linear corrections to the DGLAP evolution equations of parton distribution functions (PDFs) resulting from gluon recombination, which reduce the pace of evolution at small momentum fractions $x$. The non-linear evolution is implemented in the \textsc{HOPPET} and \textsc{xFitter} toolkits and used to carry out fits of proton PDFs using lepton-proton deep inelastic scattering data from HERA, BCDMS and NMC. While we do not find evidence for non-linear effects, we are able to set upper limits for their strength. We also quantify the potential impact of longitudinal structure function measurements at the Electron-Ion Collider and the Large Hadron Electron Collider on future fits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_12936 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Global fits of proton PDFs with non-linear corrections from gluon recombination Duwentäster, Pit Guzey, Vadim Helenius, Ilkka Paukkunen, Hannu High Energy Physics - Phenomenology We present numerical studies of the leading non-linear corrections to the DGLAP evolution equations of parton distribution functions (PDFs) resulting from gluon recombination, which reduce the pace of evolution at small momentum fractions $x$. The non-linear evolution is implemented in the \textsc{HOPPET} and \textsc{xFitter} toolkits and used to carry out fits of proton PDFs using lepton-proton deep inelastic scattering data from HERA, BCDMS and NMC. While we do not find evidence for non-linear effects, we are able to set upper limits for their strength. We also quantify the potential impact of longitudinal structure function measurements at the Electron-Ion Collider and the Large Hadron Electron Collider on future fits. |
| title | Global fits of proton PDFs with non-linear corrections from gluon recombination |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.12936 |