Anomalies, VMD and the Enjl Model

Details Anomalies, VMD and the Enjl Model Anomalies, VMD and the Enjl Model

1993-10-27

arxiv.org/abs/hep-ph/9310355v1

Phys.Lett.B320:130-134,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, plain LaTeX, preprint NORDITA - 93/69 N,P and NBI-93-60

Scientific paper

10.1016/0370-2693(94)90835-4

We show how the effective action of the Extended Nambu--Jona-Lasinio model (ENJL) can be defined in the presence of anomalies in a way that reproduces the flavour anomaly. This necessarily breaks Vector Meson Dominance (VMD) in the usual sense. The same method can be used to construct other chiral effective theories involving constituent quarks and spin-1 mesons that give the correct flavour anomaly. We also comment on how standard VMD is the root of this problem and those observed by previous authors in implementing VMD in the anomalous sector.

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