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arXiv · hep-lat/9809007

Resummation of Cactus Diagrams in the Clover Improved Lattice Formulation of QCD

H. Panagopoulos·E. Vicari
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Abstract

We extend to the clover improved lattice formulation of QCD the resummation of cactus diagrams, i.e. a certain class of tadpole-like gauge invariant diagrams. Cactus resummation yields an improved perturbative expansion. We apply it to the lattice renormalization of some two-fermion operators improving their one-loop perturbative estimates.

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H. Panagopoulos, E. Vicari. 1998-09-02. Resummation of Cactus Diagrams in the Clover Improved Lattice Formulation of QCD. https://doi.org/10.1103/physrevd.59.057503

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