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QCD sum rule study of the tensor Δ0Δ0 dibaryon state

M. Ahmadi1, H. Mohseni1, and K. Azizi1,2,*

  • *Contact author: kazem.azizi@ut.ac.ir
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Phys. Rev. D 112, 094003 – Published 3 November, 2025

DOI: https://doi.org/10.1103/nfm8-q2hq

Abstract

We study the exotic Δ0Δ0 dibaryon state with quantum numbers JP=2+ within the framework of QCD sum rules. A tensor interpolating current is constructed to determine the mass and residue of this state, including explicit calculations of contributions from quark, gluon, and mixed vacuum condensates up to dimension nine. The numerical analysis yields a mass of mΔ0Δ0=2426−108+101  MeV and a residue of fΔ0Δ0=(2.30−0.45+0.49)×10−4  GeV8. The predicted mass lies about 38 MeV below the 2mΔ0 threshold, which indicates the possible existence of a bound configuration. Consequently, the tensor Δ0Δ0 dibaryon may serve as a promising candidate for future experimental searches.

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Phys. Rev. D 112, 094003– Published 3 November, 2025
  • Received 16 August 2025
  • Accepted 14 October 2025
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