Heavy Baryons in Holographic QCD Using Higher Dimensional Degrees of Freedom

In these proceedings, we discuss baryon properties in holographic QCD. First, we propose a method of introducing a heavy flavor into the Sakai–Sugimoto model by regarding the gauge field of the extra dimension as a heavy meson. Using the Forgács–Manton method, we obtain an action consisting of light and heavy mesons. By performing collective coordinate quantization for the instanton of the light meson fields, we derive the mass formula of heavy baryons. Then, we investigate the decay properties of the Roper resonance using the Sakai–Sugimoto model.