Searching for doubly charmed tetraquark candidates $$T_{cc}$$ and $$T_{cc\bar{s}}$$ in $$B_c$$ decays

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