Analysis of the tetraquark and hexaquark molecular states with the QCD sum rules

Zhi-Gang Wang

Table 1. The Borel parameters, continuum threshold parameters, energy scales of the QCD spectral densities and pole contributions for the ${D}^{* }{\bar{D}}^{* }$, ${D}^{* }{D}^{* }$, ${D}^{* }{D}^{* }{\bar{D}}^{* }$ and ${D}^{* }{D}^{* }{D}^{* }$ tetraquark and hexaquark molecular states.

JP ${T}^{2}({\mathrm{GeV}}^{2})$ $\sqrt{{s}_{0}}(\mathrm{GeV})$ $\mu (\mathrm{GeV})$ Pole ${0}^{+}({D}^{* }{\bar{D}}^{* })$ 2.8-3.2 4.55 ± 0.10 1.5 (41-64)% ${0}^{+}({D}^{* }{D}^{* })$ 3.0-3.4 4.65 ± 0.10 1.8 (41-62)% ${1}^{-}({D}^{* }{D}^{* }{\bar{D}}^{* })$ 3.9-4.3 6.60 ± 0.10 2.4 (41-60)% ${1}^{-}({D}^{* }{D}^{* }{D}^{* })$ 3.9-4.3 6.60 ± 0.10 2.4 (39-60)%