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Baryons from instantons in holographic QCD

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arxiv hep-th/0701280 v3 pith:SGY6MR4T submitted 2007-01-30 hep-th hep-ph

Hiroyuki Hata , Tadakatsu Sakai , Shigeki Sugimoto , Shinichiro Yamato This is my paper · ORCID
classification hep-thhep-ph
keywords baryonsbaryonholographicinstantonsizesolitonsolutionaspects
verification ladder T0 review T1 audit T2 compute T3 formal
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We consider aspects of dynamical baryons in a holographic dual of QCD that is proposed on the basis of a D4/D8-brane configuration. We construct a soliton solution carrying a unit baryon number and show that it is given by an instanton solution of four-dimensional Yang-Mills theory with fixed size. The Chern-Simons term on the flavor D8-branes plays a crucial role of protecting the instanton from collapsing to zero size. By quantizing the collective coordinates of the soliton, we work out the baryon spectra. Negative-parity baryons as well as baryons with higher spins and isospins can be obtained in a simple manner.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Holographic Soliton Crystals for Dense Nuclear Matter and Neutron Stars

    hep-ph 2026-07 conditional novelty 7.0 of 10

    A crystal of holographic baryons in the Witten-Sakai-Sugimoto model yields a nuclear-matter equation of state compatible with neutron-star observations.

  2. The Tachyon Chern-Simons action with a generic tachyon field, and baryons in V-QCD

    hep-th 2026-07 accept novelty 6.5 of 10

    General Tachyon-Chern-Simons forms are built via Quillen superconnections for arbitrary tachyon matrices, and baryon number equals the superconnection instanton number even with massive, flavor-dependent quarks.

  3. Cosmic Topological Defects from Holography

    hep-th 2024-11 conditional novelty 6.0 of 10

    Using the Witten-Sakai-Sugimoto holographic model, the authors describe axionic cosmic string loops and domain walls as D6-brane embeddings, find a first-order transition between them, and show that large-baryon-charg...

  4. Bubble wall velocity and nucleation rates in inverse holographic phase transitions

    hep-th 2026-06 unverdicted novelty 5.5 of 10

    In the Witten–Sakai–Sugimoto holographic QCD model, inverse first-order transitions yield Euclidean bounce solutions, nucleation rates, and (for the chiral case) bubble wall velocities under motivated steady-state app...

  5. Nucleon spectra and wave functions from holographic models with dual Einstein-dilaton and Starobinsky-dilaton gravities

    hep-th 2026-07 conditional novelty 4.0 of 10

    Adding a fitted λ parameter and Starobinsky αR² corrections lets holographic Einstein-dilaton models reproduce the nucleon radial-excitation spectrum with errors as low as 0.29%.

  6. Mechanical properties of the proton from a deformed AdS holographic model

    hep-ph 2025-11 conditional novelty 4.0 of 10

    A deformed AdS holographic model with a Dirac proton computes the gluon gravitational form factor A in good agreement with lattice QCD after normalizing the zero point, but the D-term and derived pressure/shear distri...

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