During the 31st International Symposium on Lepton Photon Interactions at High Energies hosted by Monash University in Melbourne (https://indico.cern.ch/event/1114856), Prof. Ying Chen give a talk on “Lattice QCD developments in flavor physics”.

To summarize, the main points are:

  • Lattice QCD makes a rapid progress in the study of heavy flavor spectroscopy.
  • Multiquark states are hot topics of lattice QCD studies.
  • The existing lattice QCD results relevant to \(T_{cc}^+(3875)\) are consistent with each other and support the existence of a shallow \(DD^*(I=0)\) bound state.
  • Similar studies are extended to the beauty counterpart \(T_{bb}\) of \(T_{cc}\), and suggest the existence of a (deeply) bound \(I(J^P)=0(1^+)\) \(BB^*\) state.
  • A deeply bound dibaryon \(\Omega_{bbb}\Omega_{bbb}\) is predicted.
  • There are also developments in the study of charmoniumlike resonance.
  • The decay properties of charmoniumlike hybrid \(\eta_{c1}\) are predicted by lattice QCD.
  • More interesting works is underway.

For more details of the talk, please refer to pdf.

Prof. Ying Chen gives the talk at the conference