Hidden Local Symmetry and Effective Chiral Theory for Vector and   Axial-vector Mesons
  The Lagrangian of pseudoscalar, vector, and axial-vector mesons is determined by the explicit global chiral symmetry and hidden local chiral symmetry. There are fourteen interacting terms up to the dimension-four of covariant derivatives rather than the usual eleven interacting terms given in literature from hidden local symmetry approach. There are only two independent parameters. The three new terms are important in phenomenology. 
Bing An Li (Univ. of Kentucky) and Yue-Liang Wu (Institute of   Theoretical Physics, Academia Sinica)