458 citations · 7.2k across the 157 of their papers we have counts for
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The matrix element method at next-to-leading order for arbitrary jet algorithms
Robin Baumeister, Stefan Weinzierl
The matrix element method usually employs leading-order matrix elements. We discuss the generalisation towards higher orders in perturbation theory and show how the matrix element…
Tales of 1001 Gluons
Stefan Weinzierl
These lectures are centred around tree-level scattering amplitudes in pure Yang-Mills theories, the most prominent example is given by the tree-level gluon amplitudes of QCD. I wil…
Relations for Einstein-Yang-Mills amplitudes from the CHY representation
Leonardo de la Cruz, Alexander Kniss, Stefan Weinzierl
We show that a recently discovered relation, which expresses tree-level single trace Einstein-Yang-Mills amplitudes with one graviton and gauge bosons as a linear combinati…
The kite integral to all orders in terms of elliptic polylogarithms
Luise Adams, Christian Bogner, Armin Schweitzer +1
We show that the Laurent series of the two-loop kite integral in space-time dimensions can be expressed in each order of the series expansion in terms of ellipti…
The sunrise integral and elliptic polylogarithms
Luise Adams, Christian Bogner, Stefan Weinzierl
We summarize recent computations with a class of elliptic generalizations of polylogarithms, arising from the massive sunrise integral. For the case of arbitrary masses we obtain r…
Relations and representations of QCD amplitudes
Leonardo de la Cruz, Alexander Kniss, Stefan Weinzierl
In this talk we review relations and representations of primitive QCD tree amplitudes. Topics covered include the BCJ relations, the CHY representation, and the KLT relations. We w…
Numerical integration of subtraction terms
Satyajit Seth, Stefan Weinzierl
Numerical approaches to higher-order calculations often employ subtraction terms, both for the real emission and the virtual corrections. These subtraction terms have to be added b…
A walk on sunset boulevard
Luise Adams, Christian Bogner, Stefan Weinzierl
A walk on sunset boulevard can teach us about transcendental functions associated to Feynman diagrams. On this guided tour we will see multiple polylogarithms, differential equatio…
Double copies of fermions as only gravitational interacting matter
Leonardo de la Cruz, Alexander Kniss, Stefan Weinzierl
Inspired by the recent progress in the field of scattering amplitudes, we discuss hypothetical particles which can be characterised as the double copies of fermions -- in the same…