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Unpolarized QED parton distribution functions in NLO
- Publication Year :
- 2022
-
Abstract
- Perturbative solutions for unpolarized QED parton distribution and fragmentation functions are presented explicitly in the next-to-leading logarithmic approximation. The scheme of iterative solution of QED evolution equations is described in detail. Terms up to $\mathcal{O}(\alpha^3L^2)$ are calculated analytically, where $L=\ln(\mu_F^2/m_e^2)$ is the large logarithm which depends on the factorization energy scale $\mu_F\gg m_e$. The results are process independent and relevant for future high-precision experiments.<br />Comment: Presentation is improved, misprints are corrected
- Subjects :
- High Energy Physics - Phenomenology
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.2212.01124
- Document Type :
- Working Paper