Speaker
Luca Naterop
(University of Zurich)
Description
We perform the one-loop renormalization of the low-energy effective field theory (LEFT) in the 't Hooft-Veltman (HV) scheme for $\gamma_5$. We extend the LEFT operator basis by the required set of evanescent operators. Instead of using a pure $\overline{\textrm{MS}}$ procedure, we renormalize physical operators such that they absorb the finite effects from insertions of evanescent operators as well as finite chiral-symmetry-breaking terms. Our results can be applied to one-loop LEFT calculations in the HV scheme: using our renormalization scheme instead of pure $\overline{\textrm{MS}}$ leads to results that are manifestly free of spurious chiral-symmetry-breaking terms.
Primary author
Luca Naterop
(University of Zurich)
Co-author
Peter Matthias Stoffer
(PSI - Paul Scherrer Institut)
