Chiral Bosonization of U_A(1)-currents and the Energy-Momentum Tensor in Quantum Chromodynamics

A. A. Andrianov, V. A. Andrianov, V. L. Yudichev

Recently the new interest arised (hep-ph/0403139) to the chiral coefficients $L_{11},L_{12},L_{13}$ in the low-energy ChPT lagrangian describing the pseudoscalar meson coupling t…