Asymmetry of the quark spectrum and effective Lagrangian for massive pseudoscalar mesons

An effective Lagrangian for massive pseudoscalar mesons is obtained from the generating functional of quantum chromodynamics by the method of chiral bosonization. It is shown that the low-energy region in the integral over the quark fields is characterized by quark and gluon condensates. Expressions are found for the chiral anomaly and the anomalous action in external vector, pseudovector, scalar, and pseudoscalar fields, allowance being made for the asymmetry of the quark spectrum.