AdS/QCD: The Relevance of the Geometry

Understand

We investigate the relevance of the metric and of the geometry in five-dimensional models of hadrons.

• Generically, the metric does not affect strongly the results and even flat space agrees reasonably well with the data.
• Nevertheless, we observe a preference for a decreasing warp factor, for example AdS space.
• The Sakai-Sugimoto model reduces to one of these models and the level of agreement is similar to the one of flat space.