We propose a nonperturbative procedure to fix generic covariant gauges on the lattice. Varying the gauge parameter, this gauge fixing provides a concrete method to check numerically the gauge dependence of correlators measured on the lattice. The new algorithm turns out to converge with a good efficiency. As a preliminary physical result, we find a sensitive dependence of the gluon propagator on the gauge parameter. ©2000 The American Physical Society.
LATTICE GAUGE FIXING FOR PARAMETER DEPENDENT COVARIANT GAUGES / L., Giusti; M. L., Paciello; Petrarca, Silvano; B., Taglienti. - In: PHYSICAL REVIEW D. - ISSN 0556-2821. - D63:014501,2001:(2001), pp. 6-6. [10.1103/PhysRevD.63.014501]
LATTICE GAUGE FIXING FOR PARAMETER DEPENDENT COVARIANT GAUGES.
PETRARCA, Silvano;
2001
Abstract
We propose a nonperturbative procedure to fix generic covariant gauges on the lattice. Varying the gauge parameter, this gauge fixing provides a concrete method to check numerically the gauge dependence of correlators measured on the lattice. The new algorithm turns out to converge with a good efficiency. As a preliminary physical result, we find a sensitive dependence of the gluon propagator on the gauge parameter. ©2000 The American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
