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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2501.06849 |
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| _version_ | 1866912376425545728 |
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| author | Cerutti, Matteo Accardi, Alberto Fernando, Ishara P. Li, Shujie Owens, Joseph F. Park, Sanghwa |
| author_facet | Cerutti, Matteo Accardi, Alberto Fernando, Ishara P. Li, Shujie Owens, Joseph F. Park, Sanghwa |
| contents | We investigate the systematic uncertainties and potential biases arising from the inclusion of large-$x$ corrections to proton and deuteron deep inelastic scattering (DIS) data in global quantum chromodynamics (QCD) analyses. Using the CTEQ-JLab framework, we examine various approaches to implementing higher-twist corrections in nucleon structure functions and off-shell PDF modifications in deuteron targets. We analyze how these components interact and influence the determination of the $d$-quark PDF and the neutron structure function at large $x$. We find that it is very important to consider isospin-dependent higher-twist corrections in order to minimize implementation biases in the extracted quantities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_06849 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Systematic uncertainties from higher-twist corrections in DIS at large x Cerutti, Matteo Accardi, Alberto Fernando, Ishara P. Li, Shujie Owens, Joseph F. Park, Sanghwa High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory We investigate the systematic uncertainties and potential biases arising from the inclusion of large-$x$ corrections to proton and deuteron deep inelastic scattering (DIS) data in global quantum chromodynamics (QCD) analyses. Using the CTEQ-JLab framework, we examine various approaches to implementing higher-twist corrections in nucleon structure functions and off-shell PDF modifications in deuteron targets. We analyze how these components interact and influence the determination of the $d$-quark PDF and the neutron structure function at large $x$. We find that it is very important to consider isospin-dependent higher-twist corrections in order to minimize implementation biases in the extracted quantities. |
| title | Systematic uncertainties from higher-twist corrections in DIS at large x |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2501.06849 |