Searching for doubly charmed tetraquark candidates Tcc and Tcc(s)over-bar in Bc decays

In this work, we propose to search for the exotic doubly charmedmeson T-cc(+) and its analog T-cc (s) over bar(+) in B-c(+) decays, which provide a good environment for the formation of the exotic state containing double charm quarks. Within the molecular scheme, the production of T-cc(+) and T-cc (s) over bar(+) through various rescattering processes with different intermediate states are investigated. For the moderate values of model parameters, the branching ratios of B-c(+) decaying into T-cc(+) (D) over bar (0), T-cc(+) (D) over bar*(0), T-cc (s) over bar (D) over bar (0) and T-cc (s) over bar (D) over bar*(0) are estimated to be of the order of 10(-7), 10(-5), 10(-6) and 10(-4), respectively, which may be tested by future experiments.

Automated summary

In this study, we propose to search for the exotic doubly charmed meson T-cc(+) and its analog T-cc (s) over bar(+) in B-c(+) decays, which provide a favorable environment for the formation of the exotic state containing double charm quarks. Through various rescattering processes with different intermediate states, the production of T-cc(+) and T-cc (s) over bar(+) is investigated. The estimated branching ratios of B-c(+) decaying into T-cc(+) (D) over bar (0), T-cc(+) (D) over bar*(0), T-cc (s) over bar (D) over bar (0), and T-cc (s) over bar (D) over bar*(0) are on the order of 10(-7), 10(-5), 10(-6), and 10(-4), respectively, which can be tested in future experiments.