We compute the renormalisation factors of the quark mass and wave function using IMOM (Interpolating MOMenta) schemes. The framework is the Rome-Southampton non-renormalisation method, but the momentum transfer in the quark bilinears is not restricted to zero or to the symmetric point. We study the scale dependence, infrared contamination and lattice artefacts for different values of this momentum transfer and for two different kinds of projectors. For the numerical simulations, we use data generated by the RBC-UKQCD collaborations, with Nf=2+1 flavours of Domain-Wall fermions, and inverse lattice spacing of 1.79 and 2.38 GeV.
@article{arxiv.2202.04394,
title = {Exploring interpolating momentum schemes},
author = {N. Garron and C. Cahill and M. Gorbahn and J. A. Gracey and P. E. L. Rakow},
journal= {arXiv preprint arXiv:2202.04394},
year = {2022}
}
Comments
Talk presented at the 38th International Symposium on Lattice Field Theory, LATTICE2021 26th-30th July, 2021 Zoom/Gather@Massachusetts Institute of Technology