Further study on excited $\hat{I}{ž}_{Q{Q}^{\prime }}$ via photoproduction at CEPC and FCC-ee

Hong-Hao Ma, Juan-Juan Niu, Lei Guo

Within the framework of NRQCD, the photoproduction of doubly heavy baryons $\hat{I}{ž}_{cc}$, $\hat{I}{ž}_{bc}$, $\hat{I}{ž}_{bb}$ and their $P$-wave excited states has been systematically investigated. T…