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

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

2006-11-06

arxiv.org/abs/hep-th/0611058v1

AIP Conf.Proc.892:180-182,2007

Physics

High Energy Physics

High Energy Physics - Theory

Prepared for 7th Conference on Quark Confinement and the Hadron Spectrum, Ponta Delgada, Azores, Portugal, 2-7 Sep 2006. 3pp

Scientific paper

10.1063/1.2714366

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.

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