Dilaton effective lagrangian in gluodynamics

A. A. Migdal, M. A. Shifman

Research output: Contribution to journalArticle

175 Scopus citations

Abstract

The lagrangian of gluodynamics does not contain dimensional parameters. As a consequence, there emerges an infinite set of Ward identities connecting n-point functions induced by the operator σ = θμμ, where θμv stands for the regularized energy-momentum tensor. We construct an effective (tree) lagrangian which includes one scalar meson field and saturates automatically all the Ward identities.

Original languageEnglish (US)
Pages (from-to)445-449
Number of pages5
JournalPhysics Letters B
Volume114
Issue number6
DOIs
StatePublished - Aug 12 1982
Externally publishedYes

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