Speaker
Description
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. Applications of the QED PDFs and fragmentation functions for calculation of higher-order radiative corrections to processes of electron-positron annihilation and muon decay are given. Effects of scheme and factorization scale choice are analyzed.
The talk is based on
[1] A.B. Arbuzov, U.E. Voznaya, J. Phys. G 50 (2023) 12, 125004;
[2] A.B. Arbuzov, U.E. Voznaya, Phys. Rev. D 109 (2024) 5, 053001;
[3] A.B. Arbuzov, U.E. Voznaya, Phys. Rev. D 109 (2024) 11, 113002;
and some recent developments in this direction.
