𝑋(1870) and 𝜂₂(1870): Which Can Be Assigned as a Hybrid State?

Figure 1

(a) A prior production of glueball in the 𝐽/𝜓→𝛾𝑋_𝐺; (b) a prior production of hybrid in the 𝐽/𝜓→𝜔𝑋_𝐻.

(a)

(b)