Abstract
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.
Original language | English |
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Pages (from-to) | 475-494 |
Number of pages | 20 |
Journal | Zeitschrift für Physik C Particles and Fields |
Volume | 64 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1994 Sept 1 |
Externally published | Yes |
Subject classification (UKÄ)
- Subatomic Physics