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NLO electroweak radiative corrections for four-fermionic process at Belle II

By Aleksandrs Aleksejevs, Svetlana Barkanova and Vladimir Zykunov


We discuss the next to the leading order (NLO) electroweak radiative corrections to the e−e+ → f−f+(γ) cross section asymmetry, for polarized and unpolarized beam scenario. The left-right and forward-backward amplitudes, with and without radiative corrections, are evaluated and compared for various kinematics. The hard bremsstrahlung is included for arbitrary energy cuts. The radiative corrections are shown to be significant and having a non-trivial dependency on the kinematic conditions. The calculations are relevant for the ultra-precise low-energy experiment Belle II planned at SuperKEKB

Publisher: EDP Sciences
DOI identifier: 10.1051/epjconf/201713806001
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