Dilaton effective lagrangian in gluodynamics

A. A. Migdal; M. A. Shifman

doi:10.1016/0370-2693(82)90089-2

Dilaton effective lagrangian in gluodynamics

A. A. Migdal, M. A. Shifman

Research output: Contribution to journal › Article › peer-review

200 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 = θ_μμ, where θ_μv 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 language	English (US)
Pages (from-to)	445-449
Number of pages	5
Journal	Physics Letters B
Volume	114
Issue number	6
DOIs	https://doi.org/10.1016/0370-2693(82)90089-2
State	Published - Aug 12 1982
Externally published	Yes

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title = "Dilaton effective lagrangian in gluodynamics",

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.",

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AB - 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.

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DO - 10.1016/0370-2693(82)90089-2

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Dilaton effective lagrangian in gluodynamics

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