On incorporation of heavy-quark mass into soft-wall holographic models

S. S. Afonin, T. D. Solomko

Research output: Contribution to journalArticlepeer-review


In this paper, we consider the soft-wall holographic model with the linear dilaton background. The model leads to a Hydrogen-like meson spectrum which can be interpreted as the static limit with very large quark masses when the Coulomb interaction dominates. The mass scale introduced by the linear dilaton is matched to the quark mass. The resulting model is analyzed for the scalar, vector and tensor cases. The electromagnetic coupling constants predicted by the model are decreasing with the radial number in contrast to the soft-wall model with quadratic dilaton where these couplings represent a universal constant. The given prediction is qualitatively consistent with the corresponding experimental data in vector quarkonia. The proposed model can thus be used as a constituent part of more elaborated holographic models for heavy quarkonia. A particular example of such a model is put forward.

Original languageEnglish
Article number2350122
JournalInternational Journal of Modern Physics A
Issue number22-23
StatePublished - 20 Aug 2023


  • Holographic QCD
  • meson spectra

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Astronomy and Astrophysics


Dive into the research topics of 'On incorporation of heavy-quark mass into soft-wall holographic models'. Together they form a unique fingerprint.

Cite this