Abstract
1. The X(3872) State as Charmonium χc1(2P) 2. The χc1 and χb1 production in the e+e−→ χc1/χb1 reaction
Highlights
We reviewed the scenario in detail where X(3872) resonance is the cc = χc1(2P) charmonium which "sits on" the D0D ∗0 threshold
We predicted the significant number of decay channels via two gluons: X(3872) → gluon gluon → light hadrons, the same as in the case χc1(1P) → gluon gluon → light hadrons. It means that two virtual gluons can produced the X(3872) resonance e+e− → ψ(mi) → γ gluon gluon → γX(3872), (2)
The giant colourless molecule does not connected with gluons! Its colourless constituents D0, D ∗0 do not connected with gluons ! So The BES III Collaboration closes the molecular model of the X(3872) resonance
Summary
It means that two virtual gluons can produced the X(3872) resonance e+e− → ψ(mi) → γ gluon gluon → γX(3872), (2) The BES III Collaboration found the X(3872) resonance in the reaction e+e− → γX(3872) at center-of-mass energies for 4.009 to 4.420 The BES III Collaboration found the X(3872) resonance in the reaction e+e− → γX(3872) at center-of-mass energies for 4.15 to 4.3 GeV [7]
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