Unpolarized QED parton distribution functions in NLO
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 ( α 3 L 2 ) are calculated analytica...
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| Veröffentlicht in: | Journal of physics. G, Nuclear and particle physics Nuclear and particle physics, 2023-12, Vol.50 (12), p.125004 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | 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
(
α
3
L
2
)
are calculated analytically, where
L
=
ln
(
μ
F
2
/
m
e
2
)
is the large logarithm which depends on the factorization energy scale
μ
F
≫
m
e
. The results are process independent and relevant for future high-precision experiments. |
|---|---|
| ISSN: | 0954-3899 1361-6471 |
| DOI: | 10.1088/1361-6471/acff7b |