A two-gluon constituent model with instanton-induced mass and adjoint confinement predicts a compact scalar glueball of radius ~1/3 fm and an extended tensor state, matching quenched lattice results.
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A review proposes reclassifying scalar mesons with f0(980) and a0(980) as ground states and f0(1500) as glueball, then models glueballs as topological solitons whose energies agree with lattice QCD while interpreting f0(2470) as glueballonium.
A constituent quark model predicts masses of 1.9, 4.2, and 6.6 GeV for light, charmonium-like, and fully-charm 1^{-+} tetraquarks along with decay ratios for specific two-body channels and rules out η1(1855) as a compact tetraquark.
citing papers explorer
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Glueballs, Constituent Gluons and Instantons
A two-gluon constituent model with instanton-induced mass and adjoint confinement predicts a compact scalar glueball of radius ~1/3 fm and an extended tensor state, matching quenched lattice results.
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Selected Topics in Quark-Hadron Physics: From Scalar Nonets to Topological Glueballs
A review proposes reclassifying scalar mesons with f0(980) and a0(980) as ground states and f0(1500) as glueball, then models glueballs as topological solitons whose energies agree with lattice QCD while interpreting f0(2470) as glueballonium.
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Systematic study of exotic $1^{-+}$ tetraquark spectroscopy
A constituent quark model predicts masses of 1.9, 4.2, and 6.6 GeV for light, charmonium-like, and fully-charm 1^{-+} tetraquarks along with decay ratios for specific two-body channels and rules out η1(1855) as a compact tetraquark.