期刊
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
卷 153, 期 -, 页码 185-190出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysbps.2006.01.048
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In this talk we report on a recent lattice investigation of the Landau gauge gluon and ghost propagators in pure SU(3) lattice gauge theory with a special emphasis on the Gribov copy problem. In the (infrared) region of momenta q(2) <= 0.3 GeV2 we find the corresponding MOM scheme running coupling alpha(s)(q(2)) to rise in q. We also report on a first SU(3) computation of the ghost-gluon vertex function showing that it deviates only weakly from being constant. In addition we study the spectrum of low-lying eigenvalues and eigenfunctions of the Faddeev-Popov operator as well as the spectral representation of the ghost propagator.
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