We incorporate chiral symmetry breaking in a soft-wall version of the AdS/QCD model by using a modified dilaton profile and a quartic term in the bulk scalar potential. This allows one to separate the dependence on spontaneous and explicit chiral symmetry breaking. The resulting mass spectra in the scalar, vector and axial-vector sectors compares favorably with the respective QCD resonances.
Bibliographical noteFunding Information:
This work was supported by the Research Corporation for Science Advancement, the Australian Research Council, the US Department of Energy under grant DE-FG02-87ER40328, and by the School of Physics and Astronomy at the University of Minnesota.
- Chiral symmetry
- Gauge/gravity duality
- Meson properties