Rho - omega mixing in chiral perturbation theory

Abstract

In order to calculate the rho - omega mixing we extend the chiral couplings of the low-lying vector mesons in chiral perturbation theory to a lagrangian that contains two vector fields. We determine the momentum dependence of the two-point function and recover an earlier result for the on-shell expression. We discuss the off-shell behaviour of the mixing.

Latex, 12 pages. The paper is also available via anonymous ftp at (129.13.102.139) ftp://ttpux2.physik.uni-karlsruhe.de/ttp95-08/ttp95-08.ps, or via www at http://ttpux2.physik.uni-karlsruhe.de/cgi-bin/preprints/

References in corpus (5)

• Chiral perturbation theory
• On the Foundations of Chiral Perturbation Theory
• Rho-omega mixing, vector meson dominance and the pion form-factor
• The standard model at low energies
• Chiral Perturbation Theory

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