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Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

Two- and three-point functions in the extended NJL model

Author

  • Johan Bijnens
  • Joaquim Prades

Summary, in English

The two-point functions in generalized Nambu-Jona-Lasinio models are calculated to all orders in momenta and quark masses to leading order in 1/Nc. The use of Ward identities and the heat-kernel expansion allows for a large degree of regularization independence. We also show how this approach works to the same order for three-point functions on the example of the vectorpseudoscalar-pseudoscalar three-point function. The inclusion of the chiral anomaly effects at this level is shown by calculating the pseudoscalar-vector-vector three-point function to the same order. Finally we comment on how (vector-) meson-dominance comes out in the presence of explicit chiral symmetry breaking in both the anomalous and the non-anomalous sectors.

Publishing year

1994-09-01

Language

English

Pages

475-494

Publication/Series

Zeitschrift für Physik C Particles and Fields

Volume

64

Issue

3

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0170-9739