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R^4 counterterm and E7(7) symmetry in maximal supergravity
J. Broedel, L. J. Dixon
The coefficient of a potential R^4 counterterm in N=8 supergravity has been shown previously to vanish in an explicit three-loop calculation. The R^4 term respects N=8 supersymmetr…
On soft singularities at three loops and beyond
Lance J. Dixon, Einan Gardi, Lorenzo Magnea
We report on further progress in understanding soft singularities of massless gauge theory scattering amplitudes. Recently, a set of equations was derived based on Sudakov factoriz…
NLO QCD Predictions for W+3 jets
C. F. Berger, Z. Bern, L. J. Dixon +6
In this contribution we present results from the NLO computation of the production of a boson in association with three jets in hadronic collisions. The results are obtained by…
Next-to-Leading Order QCD Predictions for W+3-Jet Distributions at Hadron Colliders
C. F. Berger, Z. Bern, L. J. Dixon +6
We present next-to-leading order QCD predictions for a variety of distributions in W+3-jet production at both the Tevatron and the Large Hadron Collider. We include all subprocesse…
Multi-jet cross sections at NLO with BlackHat and Sherpa
C. F. Berger, Z. Bern, L. J. Dixon +6
In this talk, we report on a recent next-to-leading order QCD calculation of the production of a W boson in association with three jets at hadron colliders. The computation is perf…
The Ultraviolet Behavior of N=8 Supergravity at Four Loops
Z. Bern, J. J. Carrasco, L. J. Dixon +2
We describe the construction of the complete four-loop four-particle amplitude of N=8 supergravity. The amplitude is ultraviolet finite, not only in four dimensions, but in five di…