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- W1969162502 endingPage "644" @default.
- W1969162502 startingPage "607" @default.
- W1969162502 abstract "We consider a non-local version of the NJL model, based on a separable quark-quark interaction. The interaction is extended to include terms that bind vector and axial-vector mesons. The non-locality means that no further regulator is required. Moreover the model is able to confine the quarks by generating a quark propagator without poles at real energies. Working in the ladder approximation, we calculate amplitudes in Euclidean space and discuss features of their continuation to Minkowski energies. Conserved currents are constructed and we demonstrate their consistency with various Ward identities. Various meson masses are calculated, along with their strong and electromagnetic decay amplitudes. We also calculate the electromagnetic form factor of the pion, as well as form factors associated with the processes γγ* → π0 and ω → π0γ*. The results are found to lead to a satisfactory phenomenology and lend some dynamical support to the idea of vector-meson dominance." @default.
- W1969162502 created "2016-06-24" @default.
- W1969162502 creator A5067190397 @default.
- W1969162502 creator A5076114371 @default.
- W1969162502 date "1998-01-01" @default.
- W1969162502 modified "2023-09-28" @default.
- W1969162502 title "Meson properties in an extended non-local NJL model" @default.
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