84 citations · 241 across the 6 of their papers we have counts for
6 papers
New Methods for the Calculation of Multi-Loop Amplitudes
P. Marquard
We present a brief review of current methods for the calculation of multi-loop amplitudes including recent developments. As an example we present the calculation of the second mome…
Higher Moments of Heavy Quark Correlators in the Low Energy Limit at O(alpha_s^2)
A. Maier, P. Maierhoefer, P. Marquard
We present the first 30 moments of the low energy expansions of the vector, axial-vector, scalar and pseudo-scalar heavy quark correlation functions at three-loop order, including…
Three-Loop Chromomagnetic Interaction in HQET
A. G. Grozin, P. Marquard, J. H. Piclum +1
We compute the three-loop QCD corrections to the quark chromomagnetic moment and thus obtain the matching coefficient and the anomalous dimension of the chromomagnetic interaction…
Relation between the pole and the minimally subtracted mass in dimensional regularization and dimensional reduction to three-loop order
P. Marquard, L. Mihaila, J. H. Piclum +1
We compute the relation between the pole quark mass and the minimally subtracted quark mass in the framework of QCD applying dimensional reduction as a regularization scheme. Speci…
Multi gluon collinear limits from MHV amplitudes
P. Marquard, T. G. Birthwright
We consider the multi-collinear limit of multi-gluon QCD amplitudes at tree level. We use the MHV rules for constructing colour ordered tree amplitudes and the general collinear fa…
On the determination of the structure of the scalar Higgs boson's couplings to vectorbosons
C. P. Buszello, P. Marquard, J. J. van der Bij
In this paper we investigate the determination of the coupling structure of a Higgs boson at the LHC using angular correlations in the decay chain H -> ZZ -> 4l. We consider the mo…