تقرير
Off-shell modifications of bound nucleons and parton distributions
| العنوان: | Off-shell modifications of bound nucleons and parton distributions |
|---|---|
| المؤلفون: | Alekhin, S. I., Kulagin, S. A., Petti, R. |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Phenomenology |
| مصطلحات موضوعية: | High Energy Physics - Phenomenology |
| الوصف: | We discuss results from our global QCD analyses including nuclear data off deuterium from various measurements, as well as off $^3$H and $^3$He targets from the MARATHON experiment. We simultaneously determine the parton distribution functions of the proton, the higher-twist terms, and the nucleon off-shell correction functions responsible for the modifications of the partonic structure in bound protons and neutrons. In particular, we study the neutron-proton asymmetry of the off-shell correction and its interplay with the treatment of the higher-twist terms. We observe that the data on the $^3$He/$^3$H cross section ratio are consistent with a single isoscalar off-shell function. We also provide our predictions on the ratio $F_2^n/F_2^p$ and on the $d$ and $u$ quark distributions in the proton and in the $^3$H and $^3$He nuclei. Comment: 6 pages, 4 figures. Presented at DIS2023: XXX International Workshop on Deep-Inelastic Scattering and Related Subjects, Michigan State University, USA, 27-31 March 2023 |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2312.00809 |
| رقم الأكسشن: | edsarx.2312.00809 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |