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Tachyon-dependent Chern-Simons terms and the V-QCD Baryon

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arxiv 2209.05868 v2 pith:W7KS4HL4 submitted 2022-09-13 hep-th

M. Järvinen , E. Kiritsis , F. Nitti , E. Préau This is my paper
classification hep-th
keywords baryonformtachyon-chern-simonsboundaryflavoractionanomaliesaxial
verification ladder T0 review T1 audit T2 compute T3 formal
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The structure of the five-dimensional Tachyon-Chern-Simons action and its relevance to single-baryon states in the context of the V-QCD models for holographic QCD with backreacting flavor are analyzed. The most general form of the Tachyon-Chern-Simons 5-form, compatible with symmetries and flavor anomalies is determined. It is the sum of a non-trivial gauge-invariant 5-dimensional form and a non-invariant closed 5-form that reproduces the flavor anomalies. Single-baryon solutions of the gravity theory, arising from the DBI plus Tachyon-Chern-Simons actions are considered. The baryon is realised as a bulk axial instanton. The baryon ansatz and the field equations are derived and the boundary conditions are determined, which ensure that the solution has finite boundary energy and unit baryon charge. The boundary baryon number, which is computed from the universal (closed) part of the Tachyon-Chern-Simons action, is shown to coincide with the bulk axial instanton number.

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Cited by 3 Pith papers

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

  1. Quark flavors in hot and dense holographic QCD: setup and comparison to data

    hep-ph 2025-07 conditional novelty 7.0 of 10

    A 2+1 flavor holographic QCD model fitted to lattice thermodynamics predicts a smoother nuclear-to-quark matter transition with lower latent heat than earlier V-QCD models.

  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. 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%.

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