Is Pcs(4459) one state or two?


  • Chu-Wen Xiao Central South University
  • J. Nieves Centro Mixto Universidad de Valencia-CSIC
  • E. Oset Centro Mixto Universidad de Valencia-CSIC
  • J. J. Wu University of Chinese Academy of Sciences (UCAS)
  • B. S. Zou Central South University



Pentaquark state, heavy quark spin symmetry, coupled channel


The LHCb collaboration reported recently a charm-strange pentaquark state Pcs(4459) found in the J/ψΛ invariant mass distribution. Using a coupled channel unitary approach combined with the local hidden gauge formalism, we investigate the D¯(∗)Ξ (∗,0) c interactions, together with the J/ψΛ and other coupled channels, with the constraints of the heavy quark spin symmetry. We dynamically reproduce the Pcs(4459) state in the coupled channel interactions, which is a degenerate state of D¯ ∗Ξc and analogous to the Pc(4450) state before. Furthermore, we make more predictions for future experiments.


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How to Cite

Xiao C-W, Nieves J, Oset E, Wu JJ, Zou BS. Is Pcs(4459) one state or two?. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 11 [cited 2022 Dec. 7];3(3):0308045 1-7. Available from: