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arXiv · hep-lat/9806009

Resummation of Cactus Diagrams in Lattice QCD

H. Panagopoulos·E. Vicari
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Abstract

We show how to perform a resummation, to all orders in perturbation theory, of a certain class of gauge invariant diagrams in Lattice QCD. These diagrams are often largely responsible for lattice artifacts. Our resummation leads to an improved perturbative expansion. Applied to a number of cases of interest, this expansion yields results remarkably close to corresponding nonperturbative estimates.

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H. Panagopoulos, E. Vicari. 1998-06-08. Resummation of Cactus Diagrams in Lattice QCD. https://doi.org/10.1103/physrevd.58.114501

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