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  • Open Access

Hidden-strangeness tetraquarks in the dynamical diquark model

Shahriyar Jafarzade* and Richard F. Lebed†

  • *Contact author: sjafarz2@asu.edu
  • †Contact author: Richard.Lebed@asu.edu
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Phys. Rev. D 112, 014034 – Published 21 July, 2025

DOI: https://doi.org/10.1103/4t78-3tc3

Abstract

The dynamical diquark model describes multiquark exotic hadrons in terms of diquark components nucleated by heavy quarks and successfully explains multiple features of hidden-charm and hidden-bottom exotics. Here, we apply the model to the marginally heavy case of hidden-strange states to probe whether mesons near 2 GeV with peculiar properties, such as ϕ(2170), f2(2340), and X(2370), are possible tetraquark candidates. We calculate spin-multiplet average masses using potentials obtained through lattice simulations and quark models, and we also describe the detailed spectra of the expected multiplets as a diagnostic to discern the nature of future hadrons likely to be discovered in this mass region by experiments at facilities such as BESIII, JLab, and the EIC.

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Phys. Rev. D 112, 014034– Published 21 July, 2025
  • Received 27 May 2025
  • Accepted 30 June 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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