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Heavy Hybrid Decays in a Constituent Gluon Model
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abstract
A constituent gluon model that is informed by recent lattice field theory is developed. The model is then used to compute hybrid strong decay widths, that can be useful for the GlueX collaboration at Jefferson Lab and the PANDA collaboration at FAIR. Commensurately, forthcoming data from GlueX and PANDA will test the model. Widths tend to be large except for those of the lightest hybrid $S$-wave multiplet. Selection rules, extensions, limitations, and applications are discussed.
Forward citations
Cited by 2 Pith papers
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Lattice QCD study of color correlations between static quarks with gluonic excitations
Excited hybrid quark-antiquark channels are color-octet at short distance and exponentially relax to random color, with screening masses ordered B(Σ_g^+) ~ B(Π_u) < B(Π_u') ~ B(Δ_g) < B(Δ_g') < B(Σ_g^+').
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Revisiting charmonium hybrid spectroscopy
The lowest charmonium hybrid multiplet is predicted at 4.19–4.32 GeV: the 0^-+ and 1^-+ are narrow, while the 1^-- and 2^-+ decay near the DD1 and DD2* thresholds.
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