Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2011-01-31
Physics
High Energy Physics
High Energy Physics - Lattice
Contribution to the proceedings of the conference "The many faces of QCD", Gent (Belgium), November 1-5, 2010
Scientific paper
The calculation of the Landau gauge gluon propagator performed in Coimbra using lattice QCD simulations is reviewed. Particular attention is given to the behavior of the gluon propagator in the infrared region and the value of $D(0)$. In the second part of the article, the modeling of the lattice data using massive type propagators and Gribov type propagators is discussed. Four different mass scales are required to describe the propagator over the full range of momenta accessed by the simulations discussed here. Furthermore, assuming a momentum dependent gluon mass, we sketch on its functional dependence.
Bicudo Pedro
Oliveira Orlando
Silva Pedro J.
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