Perturbative renormalisation of the $\hat{I}{¦}_{4-\epsilon }^4$ model via generalized Wick maps

Nils Berglund, Tom Klose, Nikolas Tapia

We consider the perturbative renormalisation of the $\hat{I}{¦}_d^4$ model from Euclidean Quantum Field Theory for any, possibly non-integer dimension $d<4$. The so-called BPHZ renormalisa…