Factorized QED and QCD Contribution to Deeply Inelastic Scattering
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866910973778984960 |
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| author | Cammarota, Justin Qiu, Jian-Wei Watanabe, Kazuhiro Zhang, Jia-Yue |
| author_facet | Cammarota, Justin Qiu, Jian-Wei Watanabe, Kazuhiro Zhang, Jia-Yue |
| contents | We present the first calculation of next-to-leading order (NLO) factorized QED and QCD contributions to the short-distance hard coefficients of inclusive lepton-hadron deep inelastic scattering (DIS) in a joint QED and QCD factorization approach. Unlike the traditional radiative correction approach to handle the collision-induced QED contributions to DIS, QED radiation from all charged leptons and quarks are treated equally, and their collinear sensitivities are systematically factorized into corresponding universal lepton and parton distribution functions. We demonstrate that the NLO factorized QED contribution is completely infrared safe and calculable without the need of any parameters other than the standard factorization scale in the same way as the factorized QCD contribution. We discuss the potential impact of this joint factorization approach on the extraction of partonic information from lepton-hadron DIS. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_23487 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Factorized QED and QCD Contribution to Deeply Inelastic Scattering Cammarota, Justin Qiu, Jian-Wei Watanabe, Kazuhiro Zhang, Jia-Yue High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory We present the first calculation of next-to-leading order (NLO) factorized QED and QCD contributions to the short-distance hard coefficients of inclusive lepton-hadron deep inelastic scattering (DIS) in a joint QED and QCD factorization approach. Unlike the traditional radiative correction approach to handle the collision-induced QED contributions to DIS, QED radiation from all charged leptons and quarks are treated equally, and their collinear sensitivities are systematically factorized into corresponding universal lepton and parton distribution functions. We demonstrate that the NLO factorized QED contribution is completely infrared safe and calculable without the need of any parameters other than the standard factorization scale in the same way as the factorized QCD contribution. We discuss the potential impact of this joint factorization approach on the extraction of partonic information from lepton-hadron DIS. |
| title | Factorized QED and QCD Contribution to Deeply Inelastic Scattering |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2505.23487 |