Abstract
In the Abelian gauge field theory of an axial-vector meson coupled to a conserved axial current, one elaborates a mechanism first proposed by Adler, Gross and Jackiw to compensate the failure of the axial Ward identity by including an extra termO(g 3) in the Lagrangian density. This extra contribution is quantized first in a noncovariant gauge, along with the free-field contribution. A Lorentz-invariant form is then given and spontaneous symmetry breaking is shown to arise in higher orders.
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