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10–14 Nov 2021
暨南大学
Asia/Shanghai timezone

Study of $P_{cs}(4459)$ state

Not scheduled
15m
暨南大学

暨南大学

Speaker

Chu-Wen Xiao (Central South University)

Description

The LHCb collaboration has reported recently the charm-strange pentaquark states found in the $J/\psi \Lambda$ mass distribution, called as the $P_{cs}(4459)$ state. Based on the constraints of the heavy quark spin symmetry combined with the local hidden gauge symmetry, we investigate the $\bar{D}^{(∗)} \Xi_c^{(∗,\prime)}$ interactions, together with $J/\psi \Lambda$ and other coupled channels, using a coupled channel approach. With this approach, before the experimental findings, we had made some predictions for them. Using the experimental results, one can determine the free parameters, $a_{\mu}$ in the loop functions. From the poles found in the second Riemann sheets, we dynamically reproduce the $P_{cs}(4459)$ state in the coupled channel interactions, which may be a degenerate state, analogous to the one of $P_c(4450)$ before. Furthermore, our results also made some more predictions for further experimental studies.
Presentation type Oral

Primary author

Chu-Wen Xiao (Central South University)

Co-authors

Prof. Bingsong ZOU (ITP, CAS) Prof. Eulogio Oset (IFIC, University of Valencia) Dr Jia-Jun Wu (IHEP) Dr Juan Nieves (IFIC (CSIC-UV))

Presentation materials

There are no materials yet.