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| Format: | Preprint |
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2025
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| Online-Zugang: | https://arxiv.org/abs/2508.06603 |
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| _version_ | 1866908483455025152 |
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| author | Cooper-Sarkar, Amanda M. Cridge, Thomas Hobbs, T. J. Huston, Joey Nadolsky, Pavel Ponce-Chavez, Maximiliano Xie, Keping |
| author_facet | Cooper-Sarkar, Amanda M. Cridge, Thomas Hobbs, T. J. Huston, Joey Nadolsky, Pavel Ponce-Chavez, Maximiliano Xie, Keping |
| contents | In this work, we examine the implications of electroweak corrections beyond leading order for processes of special interest in the Higgs sector. We especially explore the role of these corrections given the introduction of an explicit parton distribution function (PDF) for the photon in the proton, an object which emerges necessarily in global PDF fits which include QED effects (i.e., QED-enhanced PDFs). We concentrate on several representative cases, including total Higgs-production cross sections through gluon fusion, $gg \to H$, vector-boson fusion (VBFH), and associated production, $pp \to VH$; we also examine differential distributions, taking a representative Higgs-strahlung process, $pp \to W^+H$. We find that the recently developed LUX formalism for the photon PDF significantly stabilizes the PDF dependence of both QED-PDF and electroweak corrections in the Higgs sector, while leaving overall $\sim\!3\!-\!4\%$ cross-section-level variations, depending on the chosen QED-enhanced PDF. We illustrate this QED-enhanced PDF dependence by exploring predictions based upon recent analyses of the CTEQ-TEA, MSHT, and NNPDF analysis groups, fitted either at NNLO or approximate N3LO in QCD. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_06603 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | QED-enhanced PDF implications for the Higgs sector Cooper-Sarkar, Amanda M. Cridge, Thomas Hobbs, T. J. Huston, Joey Nadolsky, Pavel Ponce-Chavez, Maximiliano Xie, Keping High Energy Physics - Phenomenology In this work, we examine the implications of electroweak corrections beyond leading order for processes of special interest in the Higgs sector. We especially explore the role of these corrections given the introduction of an explicit parton distribution function (PDF) for the photon in the proton, an object which emerges necessarily in global PDF fits which include QED effects (i.e., QED-enhanced PDFs). We concentrate on several representative cases, including total Higgs-production cross sections through gluon fusion, $gg \to H$, vector-boson fusion (VBFH), and associated production, $pp \to VH$; we also examine differential distributions, taking a representative Higgs-strahlung process, $pp \to W^+H$. We find that the recently developed LUX formalism for the photon PDF significantly stabilizes the PDF dependence of both QED-PDF and electroweak corrections in the Higgs sector, while leaving overall $\sim\!3\!-\!4\%$ cross-section-level variations, depending on the chosen QED-enhanced PDF. We illustrate this QED-enhanced PDF dependence by exploring predictions based upon recent analyses of the CTEQ-TEA, MSHT, and NNPDF analysis groups, fitted either at NNLO or approximate N3LO in QCD. |
| title | QED-enhanced PDF implications for the Higgs sector |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2508.06603 |