Gluon propagator without lattice Gribov copies
Ημερομηνία
2001Source
Physical Review DVolume
63Issue
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Εμφάνιση πλήρους εγγραφήςΕπιτομή
We study the gluon propagator in quenched lattice QCD using the Laplacian gauge which is free of lattice Gribov copies. We compare our results with those obtained in the Landau gauge on the lattice, as well as with various approximate solutions of the Dyson-Schwinger equations. We find a finite value ∼(445 MeV)-2 for the renormalized zero-momentum propagator (taking our renormalization point at 1.943 GeV) and a pole mass ∼640±140 MeV. ©2001 The American Physical Society.