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NLO QCD corrections to the production of t-tbar-Z in gluon fusion
Achilleas Lazopoulos, Kirill Melnikov, Frank Petriello
We compute the O(alpha_s) QCD corrections to the partonic process gg -> t-tbar-Z at the LHC. This partonic channel is the dominant component of the scattering process pp -> t-tbar-…
Two-loop QED corrections to Bhabha scattering
Thomas Becher, Kirill Melnikov
We obtain a simple relation between massless and massive scattering amplitudes in gauge theories in the limit where all kinematic invariants are large compared to particle masses.…
QCD corrections to tri-boson production
Achilleas Lazopoulos, Kirill Melnikov, Frank Petriello
We present a computation of the next-to-leading order QCD corrections to the production of three Z bosons at the LHC. We calculate these corrections using a completely numerical me…