Extended Double Lattice BRST, Curci-Ferrari Mass and the Neuberger Problem

M. Ghiotti; L. von Smekal; A. G. Williams

doi:10.1063/1.2714366

Extended Double Lattice BRST, Curci-Ferrari Mass and the Neuberger Problem

High Energy Physics - Theory 2010-03-04 v1

Authors: M. Ghiotti , L. von Smekal , A. G. Williams

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Abstract

We present Extended Double BRST on the lattice and extend the Neuberger problem to include the ghost/anti-ghost symmetric formulation of the non-linear covariant Curci-Ferrari (CF) gauges. We then show how a CF mass regulates the 0/0 indeterminate form of physical observables, as observed by Neuberger, and discuss the gauge-parameter and mass dependence of the model.

Keywords

BRST lattice Curci-Ferrari gauge Neuberger problem ghost/anti-ghost symmetry gauge fixing

Cite

@article{arxiv.hep-th/0611058,
  title  = {Extended Double Lattice BRST, Curci-Ferrari Mass and the Neuberger Problem},
  author = {M. Ghiotti and L. von Smekal and A. G. Williams},
  journal= {arXiv preprint arXiv:hep-th/0611058},
  year   = {2010}
}