Is Pcs(4459) one state or two?

Authors

  • 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

DOI:

https://doi.org/10.31349/SuplRevMexFis.3.0308045

Keywords:

Pentaquark state, heavy quark spin symmetry, coupled channel

Abstract

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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Published

2022-06-11

How to Cite

1.
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: https://rmf.smf.mx/ojs/index.php/rmf-s/article/view/6298