In this work, we propose to search for the exotic doubly charmed meson $T_{ cc}^+$ and its analog $T_{ cc\bar{ s}}^+$ 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 $T_{ cc\bar{ s}}^+$ 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 $T_{ cc}^+ \bar{ D}^{ 0}$, $T_{ cc}^+ \bar{ D}^{ *0}$, $T_{ cc\bar{ s}}^+ \bar{ D}^{ 0}$ and $T_{ cc\bar{ s}}^+ \bar{ D}^{ *0}$ 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.
Categories: hep-ph hep-ex