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One-Loop Gluonic Amplitudes from Single Unitarity Cuts
E. W. Nigel Glover, Ciaran Williams
We show that one-loop amplitudes in massless gauge theories can be determined from single cuts. By cutting a single propagator and putting it on-shell, the integrand of an n-point…
MHV amplitudes in N=2 SQCD and in N=4 SYM at one loop
E. W. Nigel Glover, Valentin V. Khoze, Ciaran Williams
Using four-dimensional unitarity and MHV-rules we calculate the one-loop MHV amplitudes with all external particles in the adjoint representation for N=2 supersymmetric QCD with N_…
One-loop phi-MHV amplitudes using the unitarity bootstrap: the general helicity case
E. W. N. Glover, Pierpaolo Mastrolia, Ciaran Williams
We consider a Higgs boson coupled to gluons via the five-dimensional effective operator H tr G_{μν}G^{μν}. We treat H as the real part of a complex field phi that couples to the se…