Hybrid Meson Interpretation of the Exotic Resonance

Table 4

Our hybrid masses and the decay widths (in GeV) compared to the lattice QCD and flux tube results.

Constituent glue model (this work)				Flux tube model		Lattice QCD
=0.5 GeV	QE-GE mix.	QE	GE	Ref. [9]	Ref. [11]	Ref. [7]
	0.28	0.28	Forbidden^a	0.005-0.020	0.009	—
	0.29	Forbidden^b	0.29	0.170	0.024
	0.10	Forbidden^c	0.10	0.060	0.005
	—	Forbidden^d	<0.010	0.000-0.010	0.000	—

^aSelection rule. ^bSelection rule. ^cSelection rule. ^dAllowed beyond the nonrelativistic approximation. Calculations of this contribution will be the subject of future work.