Is the effective Lagrangian for quantum chromodynamics a model?

C. Rosenzweig, J. Schechter, C. G. Trahern

Research output: Contribution to journalArticle

392 Scopus citations

Abstract

A fully interacting effective chiral Lagrangian obeying the anomalous axial-baryon-current conservation law is constructed. This Lagrangian is a generalization of one implied by the 1N approximation. In a certain sense, the old model is recovered. Our Lagrangian displays the dependence of amplitudes on the quantum-chromodynamic vacuum angle, gives soft theorems, and hints at a possible complementarity between the instanton and 1N approaches. We can rewrite our model in terms of a gauge-invariant gluon field.

Original languageEnglish (US)
Pages (from-to)3388-3392
Number of pages5
JournalPhysical Review D
Volume21
Issue number12
DOIs
StatePublished - Jan 1 1980

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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