Seminar “Quantum field theory”

Date and Time: Wednesday, 5 July 2023, at 11:00 AM

Venue: Online seminar on Zoom, Blokhintsev Conference Hall (4th floor), Bogoliubov Laboratory of Theoretical Physics

Seminar topic: “QED NLO parton distribution functions”

Speakers: Andrey Arbuzov, Uliana Voznaya

Abstract:

Unpolarized parton distribution functions are calculated within the NLO approximation in QED. The iterative procedure of solving QED DGLAP equations is described. Features of factorization of large logarithmic corrections in QED are discussed. The results are applied for description of initial state radiative corrections to a general electron-positron annihilation process. Comparisons with the formulae known in the literature are performed. The results are relevant for high-precision experiments in high-energy physics.