Ghost and Gluon leading power corrections in Landau gauge
Nuclear Physics B - Proceedings Supplements(2007)
摘要
Gluon two- and three-point Green Functions computed in Landau gauge on the lattice have shown the existence of 1/q(2) power corrections to the purely perturbative expressions that can be explained through the Operator Product Expansion as the influence of a gauge dependent mass dimension two condensate. The analysis of the ghost propagator within this framework of gauge-dependent power corrections is now performed.
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关键词
green function,operator product expansion
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