Abstract
We demonstrate that the results of the complete first-order calculation of the nonfactorizable QED corrections to the single-inclusive cross sections for \(e^+e^-\to W^+W^-\to4\) fermions can be reproduced by a simple, physically motivated ansatz. The ansatz allows us to effectively take into account the screening role of the non-Coulomb radiative mechanisms by introducing a dampening factor in front of the width-dependent part of the known first-order Coulomb correction, the so-called screened-Coulomb ansatz.
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