Productions of T_cc and its SU(3)-flavor symmetry and heavy quark spin symmetry partners in B_c decays

Inspired by the observation of the doubly charmed tetraquark state T_cc at pp collisions in the inclusive processes, we systematically investigate the production of doubly charmed tetraquark states in exclusive B_c decays. In this work, we assume the T_cc as a DD^* bound state, and then predict the masses of its heavy quark spin symmetry partner D^*D^* (denoted by T^*_cc) as well as their SU(3)-flavor symmetry partners, i.e., (Formula Presented) (denoted by (Formula Presented) and (Formula Presented)) and (Formula Presented) (denoted by (Formula Presented) and (Formula Presented), using the contact range effective field theory. Within the molecular picture, we compute their partial decay widths and production rates in B_c meson decays. We identify the decays (Formula Presented) and (Formula Presented) as promising channels to observe the tetraquark states (Formula Presented) and (Formula Presented) _ccs, respectively. Finally, by combining these results with B_c production cross sections, we estimate the expected event yields for these states in the upcoming LHC Runs 3 and 4. Our results indicate that the (Formula Presented) and (Formula Presented) states are likely to be observed in B_c decays, while it is quite difficult for the T_cc and (Formula Presented) states.