Abstract
In this talk, an SU ( N f ) × SU ( N f ) Yang-Mills model with a compact extra-dimension is used to describe the spin-1 mesons and pions of massless QCD in the large- N c . The right 4D symmetry and symmetry-breaking pattern is produced by imposing appropriate boundary conditions. The Goldstone boson (GB) fields are constructed using a Wilson line. We derive the low-energy limit (chiral lagrangian), discuss ρ -meson dominance, sum rules between resonance couplings and the relation with the QCD high-energy behavior. Finally, we provide an analytic expression for the two-point function of vector and axial currents.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
