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arXiv · hep-ph/0501182

Analytic calculation of field-strength correlators

Yu. A. Simonov
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Abstract

Field correlators are expressed using background field formalism through the gluelump Green's functions. The latter are obtained in the path integral and Hamiltonian formalism. As a result behaviour of field correlators is obtained at small and large distances both for perturbative and nonperturbative parts. The latter decay exponentially at large distances and are finite at x=0, in agreement with OPE and lattice data.

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Yu. A. Simonov. 2005-04-25. Analytic calculation of field-strength correlators. https://doi.org/10.1134/s106377880603015x

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