تقرير
New results in the CTEQ-TEA global analysis of parton distributions in the nucleon
| العنوان: | New results in the CTEQ-TEA global analysis of parton distributions in the nucleon |
|---|---|
| المؤلفون: | Ablat, A., Courtoy, A., Dulat, S., Guzzi, M., Hobbs, T. J., Hou, T. -J., Huston, J., Mohan, K., Lin, H. -W., Nadolsky, P., Sitiwaldi, I., Xie, K., Yan, M., Yuan, C. -P. |
| سنة النشر: | 2024 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | This report summarizes the latest developments in the CTEQ-TEA global analysis of parton distribution functions (PDFs) in the nucleon. The focus is on recent NNLO fits to high-precision LHC data at 8 and 13 TeV, including Drell-Yan, jet, and top-quark pair production, pursued on the way toward the release of the new generation of CTEQ-TEA general-purpose PDFs. The report also discusses advancements in statistical and numerical methods for PDF determination and uncertainty quantification, highlighting the importance of robust and replicable uncertainties for high-stakes observables. Additionally, it covers phenomenological studies related to PDF determination, such as the interplay of experimental constraints, exploration of correlations between high-$x$ nucleon sea and low-energy parity-violating measurements, fitted charm in the nucleon, the photon PDF in the neutron, and simultaneous SMEFT-PDF analyses. Comment: 38 pages, 19 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2408.04020 |
| رقم الأكسشن: | edsarx.2408.04020 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |