Non-perturbative renormalization of the axial current in $N_f = 3$ lattice QCD with Wilson fermions and tree-level improved gauge action

@inproceedings{Bulava2016NonperturbativeRO,
  title={Non-perturbative renormalization of the axial current in \$N\_f = 3\$ lattice QCD with Wilson fermions and tree-level improved gauge action},
  author={John Bulava and Michele Della Morte and Jochen Heitger and Christian Wittemeier},
  year={2016}
}
We non-perturbatively determine the renormalization factor of the axial vector current in lattice QCD with Nf = 3 flavors of Wilson-clover fermions and the tree-level Symanzikimproved gauge action. The (by now standard) renormalization condition is derived from the massive axial Ward identity and it is imposed among Schrödinger functional states with large overlap on the lowest lying hadronic state in the pseudoscalar channel, in order to reduce kinematically enhanced cutoff effects. We explore… 

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