Non-perturbative renormalization of the static axial current in quenched QCD

@inproceedings{HeitgerNonperturbativeRO,
title={Non-perturbative renormalization of the static axial current in quenched QCD},
author={Jochen Heitger and Martin Kurth and Rainer Sommer}
}

We non-perturbatively calculate the scale dependence of the static axial current in the Schrödinger functional scheme by means of a recursive finite-size scaling technique, taking the continuum limit in each step. The bare current in the O(a) improved theory as well as in the original Wilson regularization is thus connected to the renormalization group invariant one. The latter may then be related to the current at the B-scale defined such that its matrix elements differ from the physical (QCD… CONTINUE READING