41 citations · 203 across the 40 of their papers we have counts for
18 papers · 1 filter
Regularization in quantum field theory from the causal point of view
Andreas Aste, Cyrill von Arx, Gunter Scharf
The causal approach to perturbative quantum field theory is presented in detail, which goes back to a seminal work by Henri Epstein and Vladimir Jurko Glaser in 1973. Causal pertur…
Massive Yang-Mills Fields in Interaction with Gravity
D. R. Grigore, G. Scharf
We determine the most general form of the interaction between the gravitational field and an arbitrary Yang-Mills system of fields (massless and massive). We work in the perturbati…
From massive gravity to dark matter density
G. Scharf
Massive gravity previously constructed as the spin-2 quantum gauge theory is studied in the classical limit. The vector-graviton field v which does not decouple in the limit of van…
Quantum Gravitational Bremsstrahlung, Massless versus Massive Gravity
Julian B. Berchtold, Gunter Scharf
The massive spin-2 quantum gauge theory previously developed is applied to calculate gravitational bremsstrahlung. It is shown that this theory is unique and free from defects. In…
Against Supersymmetry
Dan Radu Grigore, Gunter Scharf
We consider the massless supersymmetric vector multiplet in a purely quantum framework and propose a power counting formula. Then we prove that the interaction Lagrangian for a mas…
Violation of Quantum Gauge Invariance in Georgi-Glashow SU(5)
Martin Ambauen, Gunter Scharf
We check whether the SU(5) model, originally suggested by Georgi and Glashow, is compatible with perturbative quantum gauge invariance in first and second order for massive asympto…