Speaker
Kohei Matsumoto
(Kyoto University)
Description
We investigate the H-dibaryon (uuddss) in holographic QCD [1, 2]. Holographic QCD is derived from a QCD-equivalent D-brane system in the superstring theory via the gauge/gravity correspondence. In holographic QCD, all baryons appear as topological chiral solitons of Nambu-Goldstone bosons and (axial) vector mesons [1, 2]. In this framework, the H-dibaryon can be described as an SO(3)-type hedgehog state [3]. In this paper, we present the formalism of the H-dibaryon in holographic QCD, and investigate its properties. [1] T. Sakai and S. Sugimoto, Prog. Theor. Phys. 113 (2005) 843; 114 (2005) 1083. [2] K. Nawa, H. Suganuma and T. Kojo, Phys. Rev. D75 (2007) 086003. [3] A.P. Balachandran et al., Phys. Rev. Lett. 52 (1984) 887.
