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arXiv · 2606.11742

Matching of perturbative and exponentiated initial state radiation corrections to $e^+e^-$-annihilation

Andrej Arbuzov·Uliana Voznaya
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Abstract

The behavior of higher-order radiative corrections due to initial state radiation in processes of electron-positron annihilation is analyzed. Numerical results for energies of future colliders are presented. Uncertainties of the known results on these corrections are estimated. A modified scheme for simultaneous exponentiation of pure photonic and non-singlet pair corrections is presented. Matching of the exponentiated results with the existing analytic higher-order calculations is constructed. A new subtraction scheme is suggested. The results obtained are important for increasing the relative accuracy of the theoretical description of processes that will be studied in future electron-positron colliders to a level of approximately $10^{-5}$.

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Andrej Arbuzov, Uliana Voznaya. 2026-06-10. Matching of perturbative and exponentiated initial state radiation corrections to $e^+e^-$-annihilation. https://doi.org/10.55092/asymmetry20260005

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