Speaker
Prof.
Feng-Kun Guo
(Institute of Theoretical Physics)
Description
We want to discuss the Pc(4450) pentaquark-like structure observed by the LHCb Collaboration in the J/psi proton final states. We point out that it is located exactly at the chi_{c1}-proton threshold, and coincides with the leading Landau singularity of the triangle loop Lambda(1890)-chi_{c1}-proton. We also discuss the possibility of distinguishing a genuine resonance from the kinematical singularity.
Primary author
Prof.
Feng-Kun Guo
(Institute of Theoretical Physics)
