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The 2026 International Workshop on the High Energy Circular Electron Positron Collider

21–26 Oct 2026
Sheraton Shanghai Jiading Hotel
Asia/Shanghai timezone

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Factorization scale and scheme dependence in higher-order ISR corrections

Not scheduled
20m
Junior Ballroom I

Junior Ballroom I
Oral Presentation 03: EW & Top Physics EW and top Physics

Speaker

Andrej Arbuzov (Joint Institute for Nuclear Research)

Description

Higher-order contributions due to initial state radiation (ISR) in electron-positron annihilation processes are analyzed analytically and numerically. Effects due to variation of factorization scale and scheme choices in ISR are studied. A new procedure for exponentiation of higher-order next-to-leading photonic and pair corrections is suggested. The results are relevant for increasing the precision of theoretical description of general electron-positron annihilation processes at high energies. The talk is based on recent works: arXiv:2511.00437, 2606.11742 [hep-ph].

Primary author

Andrej Arbuzov (Joint Institute for Nuclear Research)

Co-author

Uliana Voznaya (JINR)

Presentation materials

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