More on a holographic dual of QCD
By T. Sakai, S. Sugimoto. 2005
757 citations recorded by the source corpus.
We investigate the interactions among the pion, vector mesons and external gauge fields in the holographic dual of massless QCD proposed in a previous paper [T. Sakai and S. Sugi-moto, Prog. Theor. Phys. 113 (2005), 843; hep-th/0412141] on the basis of probe D8-branes embedded in a D4-brane background in type IIA string theory. We obtain the coupling constants by performing both analytic and numerical calculations, and compare them with experimental data. It is found that the vector meson dominance in the pion form factor as well as in the Wess-Zumino-Witten term holds in an intriguing manner. We also study the ω → πγ and ω → 3π decay amplitudes. It is shown that the interactions relevant to these decay amplitudes have the same structure as that proposed by Fujiwara et al. [T. Fujiwara, T. Kugo, H. Terao, S. Uehara and K. Yamawaki, Prog. Theor. Phys. 73 (1985), 926]. Various relations among the masses and the coupling constants of an infinite tower of mesons are derived. These relations play crucial roles in the analysis. We find that most of the results are consistent with experiments.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2fc8519d744776d02ce312c7597dcfd9ca2f752b
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Citations in the corpus
- Light-front holographic QCD and emerging confinement (2014, methodology): “While phenomenological AdS/QCD models often take the slice of AdS5 as the background space-time, in models based on string theory the space-time geometry is dictated by the corresponding brane configuration and may be quite different from AdS5 [53, 38, 39].”
- Holographic melting and related properties of mesons in a quark-gluon plasma (2006, methodology): “e generated by monopole interactions with the medium.1 2. Review of the system at various temperatures In this section we review the various phases of the Sakai-Sugimoto model, originally proposed in [1, 2] and analysed at finite-temperature in [3]. Let us first recall the Euclideanised model at zero ”
- Strongly correlated quantum fluids: ultracold quantum gases, quantum chromodynamic plasmas and holographic duality (2012, methodology): “The most closely related to QCD is of Sakai and Sugimoto [93, 94], where the ’color’ Yang-Mills fields are introduced by the massless open string fluctuations of a stack of Nc D4-branes wrapped on a circle, and flavor degrees of freedom through fermionic open string fluctuations between D4-branes an”
- Gauge/String Duality, Hot QCD and Heavy Ion Collisions (2011, methodology): “This has been used as the starting point of the Sakai-Sugimoto model for QCD [346, 347], which incorporates spontaneous chiral symmetry breaking and its restoration at high temperatures [348, 349].”
- Brane tilings and their applications (2008, background): “These theories are interesting, because show have QCD-like behavior such as confinement and chiral symmetry breaking, as exemplified in the seminal work of Klebanov and Strassler [90].”
- Holographic chiral phase transition with chemical potential (2006, background): “∗ e-mail: horigome@krishna.th.phy.saitama-u.ac.jp † e-mail: tanii@phy.saitama-u.ac.jp”
- Chiral symmetry breaking as open string tachyon condensation (2007, methodology): “The model of Sakai and Sugimoto [7, 8] and its generalizations share many properties with our setup, but there are also important differences.”
- Baryons from instantons in holographic QCD (2007, methodology): “In this model, the massless pion and an infinite tower of the massive (axial-)vector mesons are interpreted as Kaluza-Klein states associated with the fifth (or holographic) direction, and the masses and couplings of the mesons are found to be in good agreement with experiments.”
- Dynamics of baryons from string theory and vector dominance (2007, methodology): “This work was motivated by an astute modelling of chiral dynamics within the framework of AdS/CFT by Sakai and Sugimoto [2] that correctly describes the spontaneous breaking of chiral U(NF )L × U(NF )R to the diagonal subgroup U(NF )L+R.”