NLO QED contributions to top-pair production at hadron collider
Wolfgang Hollik, Monika Kollar
TL;DR
This paper completes electroweak one-loop calculations for top-quark pair production at colliders by including QED contributions, photon-induced channels, and interference effects, enhancing the precision of theoretical predictions.
Contribution
It introduces the missing QED contributions and photon-induced channels into electroweak calculations for top-pair production, providing a more comprehensive theoretical framework.
Findings
QED contributions significantly affect top-pair production rates.
Photon-induced channels are relevant at collider energies.
Interference effects between QED and QCD are non-negligible.
Abstract
Electroweak one-loop calculations for production of top-quark pairs at colliders are completed by providing the missing QED type contributions from real and virtual photons, where also effects from interference between QED and QCD contributions have to be taken into account. Moreover, photon-induced production is included as another partonic channel.
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