Speaker
Dr
Chang Gong
(IHEP)
Description
The inner dynamics for the fully-heavy quark system is a hot topic. The LHCb Collaboration reported the observation of a tetra-quark candidate X(6900) with a configuration of cccc in the di-J/ψ invariant mass spectrum. We show that the narrow structure X(6900) can be produced via the Pomeron exchange and coupled-channel effects between the jpsi-jpsi、jpsi-psi(2S) scatterings.
Primary author
Dr
Chang Gong
(IHEP)
Co-author
Prof.
Qiang ZHAO
(Institute of High Energy Physics, Chinese Academy of Sciences)
