39 citations · 96 across the 8 of their papers we have counts for
12 papers · 1 filter
Twistor-inspired construction of massive quark amplitudes
Christian Schwinn
The analog of the Cachazo-Svrvcek-Witten rules for scattering amplitudes with massive quarks is derived following an approach previously employed for amplitudes with massive scalar…
Dominant NNLO corrections to four-fermion production near the W-pair production threshold
S. Actis, M. Beneke, P. Falgari +1
We calculate the parametrically dominant next-to-next-to-leading order corrections to four-fermion production e^- e^+ -> mu^- nubar_mu u dbar + X at centre-of-mass energies near th…
Recent developments for multi-leg QCD amplitudes with massive particles
Rutger Boels, Christian Schwinn, Stefan Weinzierl
We review the extension of modern techniques for the calculation of helicity amplitudes in QCD to massive particles. The focus is on the use of supersymmetric Ward identites that r…
Four-fermion production near the W pair production threshold
Martin Beneke, Pietro Falgari, Christian Schwinn +2
We perform a dedicated study of the four-fermion production process e- e+ -> mu- nubar_mu u dbar X near the W pair-production threshold in view of the importance of this process fo…
From Tree Unitarity to Top Quark Physics in 5D Higgsless Models
Christian Schwinn
In five dimensional models of Higgsless electroweak symmetry breaking, tree level unitarity in gauge boson scattering is restored by the exchange of gauge boson Kaluza-Klein modes…
Unitarity constraints on top quark signatures of Higgsless models
Christian Schwinn
We use conditions for unitarity cancellations to constrain the couplings of the top and bottom quarks to Kaluza-Klein modes in Higgsless models of electroweak symmetry breaking. An…