Infrared-Improved Soft-wall AdS/QCD Model for Mesons

Understand

We construct and investigate an infrared-improved soft-wall AdS/QCD model for mesons.

• Both linear confinement and chiral symmetry breaking of low energy QCD are well characterized in such an infrared-improved soft-wall AdS/QCD model.
• The model enables us to obtain a more consistent numerical prediction for the mass spectra of resonance scalar, pseudoscalar, vector and axial-vector mesons.
• In particular, the predicted mass for the lightest ground state scalar meson shows a good agreement with the experimental data.