Electromagnetic interactions of mesons induced by the axial-vector -- pseudoscalar mixings (1807.07742v1)

Published 20 Jul 2018 in hep-ph

Abstract: It is shown that the diagonalization of the axial-vector -- pseudoscalar transitions in the effective meson Lagrangian in presence of electromagnetic interactions leads to a deviation from the vector meson dominance picture which usually arises in the Nambu - Jona-Lasinio model. The essential features of such modification of the theory are studied. Some important examples are considered in detail.

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