Towards UV Finite Quantum Field Theories from Non-Local Field Operators

@inproceedings{Denk2004TowardsUF,
  title={Towards UV Finite Quantum Field Theories from Non-Local Field Operators},
  author={Stefan Denk and Volkmar Putz and Manfred Schweda and Michael Wohlgenannt},
  year={2004}
}
A non-local toy model whose interaction consists of smeared, nonlocal field operators is presented. We work out the Feynman rules and propose a power counting formula for arbitrary graphs. Explicit calculations for one loop graphs show that their contribution is finite for sufficient smearing and agree with the power counting formula. UV/IR mixing does not occur. denk@hep.itp.tuwien.ac.at putz@hep.itp.tuwien.ac.at mschweda@tph.tuwien.ac.at miw@hep.itp.tuwien.ac.at