In a constituent quark model, only baryon-baryon-like configurations of the uuddss system produce near-threshold states appearing as loosely bound three-quark clusters.
Mass of the H-dibaryon
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abstract
Recent lattice QCD calculations have reported evidence for the existence of a bound state with strangeness -2 and baryon number 2 at quark masses somewhat higher than the physical values. By developing a description of the dependence of this binding energy on the up, down and strange quark masses that allows a controlled chiral extrapolation, we explore the hypothesis that this state is to be identified with the $H$-dibaryon. Taking as input the recent results of the HAL and NPLQCD Collaborations, we show that the $H$-dibaryon is likely to be unbound by $13 \pm 14$ MeV at the physical point.
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UNVERDICTED 2representative citing papers
QCD sum rules predict Λ_c Σ_c hexaquark ground-state masses around 5.8 GeV, above threshold and consistent with no bound state observed by BESIII.
citing papers explorer
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Sexaquarks and $H$ dibaryons in the $uuddss$ system: a comparison within a constituent quark model
In a constituent quark model, only baryon-baryon-like configurations of the uuddss system produce near-threshold states appearing as loosely bound three-quark clusters.
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Mass Spectra of $\Lambda_Q\bar{\Sigma}_Q$ Hexaquark States in QCD Sum Rules
QCD sum rules predict Λ_c Σ_c hexaquark ground-state masses around 5.8 GeV, above threshold and consistent with no bound state observed by BESIII.