We introduce a new technique to generate scattering amplitudes at one loop. Traditional tree algorithms, which handle diagrams with fixed momenta, are promoted to generators of loop-momentumâ€¦ (More)

Charged gauge boson pair production at the Large Hadron Collider allows detailed probes of the fundamental structure of electroweak interactions. We present precise theoretical predictions forâ€¦ (More)

Convenors: C. Buttar1, J. Dâ€™Hondt2, M. KrÃ¤mer3, G. Salam4, M. Wobisch5, Contributing authors: N.E. Adam6, V. Adler7, A. Arbuzov8, D. Bardin8, U. Baur9, A.A. Bhatti 10, S. Bondarenko 8, V. BÃ¼ge11,12,â€¦ (More)

We present an algorithm to compute arbitrary multi-loop massive Feynman diagrams in the region where the typical energy scale âˆš s is much larger than the typical mass scale M , i.e. s â‰« M2, whileâ€¦ (More)

We report on the calculation of the full next-to-leading-order QCD corrections to the production of ttbb final states at the LHC, which deliver a serious background contribution to the production ofâ€¦ (More)

To match the precision of present and future measurements of W -boson production at hadron colliders electroweak radiative corrections must be included in the theory predictions. In this paper weâ€¦ (More)

We present an update of the Binoth Les Houches Accord (BLHA) to standardise the interface between Monte Carlo programs and codes providing one-loop matrix elements. DOI:â€¦ (More)

We consider two-loop leading and next-to-leading logarithmic virtual corrections to arbitrary processes with external massless fermions in the electroweak Standard Model at energies well above theâ€¦ (More)