Regular Article - Theoretical Physics
Tensor meson exchange at low energies
Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090, Vienna, Austria
* e-mail: Gerhard.Ecker@univie.ac.at
Revised: 29 July 2007
Published online: 1 August 2007
We complete the analysis of meson resonance contributions to chiral low-energy constants of O(p4) by including all quark–antiquark bound states with orbital angular momentum ≤1. Different tensor meson Lagrangians used in previous work are shown to produce the same final results for the low-energy constants, once QCD short-distance constraints are properly implemented. We also discuss the possible relevance of axial-vector mesons with odd C-parity (JPC=1+-).
© Springer-Verlag , 2007