{"paper":{"title":"Perturbative gauge theory in a background","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Dennis D. Dietrich, Matti Jarvinen, Paul Hoyer, Stephane Peigne","submitted_at":"2006-08-07T12:28:26Z","abstract_excerpt":"Motivated by the gluon condensate in QCD we study the perturbative expansion of a gauge theory in the presence of gauge bosons of vanishing momentum, in the specific case of an abelian theory. The background is characterised by a dimensionful parameter $\\Lambda$ affecting only the on-shell prescription of the free (abelian) gluon propagator. When summed to all orders in $g\\Lambda$ the modification is equivalent to evaluating standard Green functions in a pure gauge field with an imaginary gauge parameter $\\propto \\Lambda$. We show how to calculate the corresponding dressed Green functions, whi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0608075","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}