82 citations · 157 across the 4 of their papers we have counts for
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hep-ph1994
New representation of two-loop propagator and vertex functions
Andrzej Czarnecki, Ulrich Kilian, Dirk Kreimer
We present a new method of calculating scalar propagator and vertex functions in the two-loop approximation, for arbitrary masses of particles. It is based on a double integral rep…
hep-ph1994
An algebraic approach to Z-Factors
Dirk Kreimer
We sketch a systematic approach to multiloop calculations. We focus on the Z-factors of a renormalizable theory and show that they can be obtained by purely algebraic methods based…
hep-ph1994
The Role of in Dimensional Regularization
Dirk Kreimer
We discuss the consistency of a new \gf -scheme with renormalization. In particular we study the power-counting behaviour of multiloop graphs to prove its consistency. As a side ef…