Electromagnetic probes revealing the inner structure of the $\hat{I}{›}_c(2940)$

Ping Chen, Zi-Le Zhang, Yu Zhuge

The $\hat{I}{›}_c(2940)$, an open-charm baryon discovered in 2006, has sparked interest due to its ``low mass puzzle'', paralleling the $X(3872)$ in the charmoniumlike sector. Both states…