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Screened-Coulomb ansatz for the non-factorizable radiative corrections to the off-shell W^+ W^- production

A. P. Chapovsky·V. A. Khoze
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Abstract

We demonstrate that the results of the complete first order calculation of the non-factorizable QED corrections to the single-inclusive cross-sections for $e^+e^- \to W^+W^- \to 4$ fermions could be very well reproduced by a simple physically motivated ansatz. The latter allows to take into account effectively 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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A. P. Chapovsky, V. A. Khoze. 1999-02-15. Screened-Coulomb ansatz for the non-factorizable radiative corrections to the off-shell W^+ W^- production. https://doi.org/10.1007/s100529900070

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