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More on a Holographic Dual of QCD

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Sakai, T., Sugimoto, S.·2005·Progress of Theoretical Physics

Abstract

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. Sugimoto, 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.

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Metadata

Authors
Sakai, T., & Sugimoto, S.
Venue
Progress of Theoretical Physics
Published
2005-11-01
Volume
114
Issue
5
Pages
1083-1118
ISSN
  • 0033-068X (ISSN-L)
  • 1347-4081
OpenAlex
W1983590395
Cited by
735
References
3
FWCI
23.45
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: More on a Holographic Dual of QCD. https://app.cochat.ai/papers/10.1143/ptp.114.1083
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Sakai, T., & Sugimoto, S. (2005). More on a Holographic Dual of QCD. Progress of Theoretical Physics. https://doi.org/10.1143/ptp.114.1083

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