Productions of T c c 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 c c at p p 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 c c as a D D * bound state, and then predict the masses of its heavy quark spin symmetry partner D * D * (denoted by T c c * ) as well as their SU(3)-flavor symmetry partners, i.e., D s D * / D s * D (denoted by T c c s + and T c c s + + ) and D * D s * (denoted by T c c s * + and T c c s * + + ), 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 B c → D 0 D 0 π + D ¯ 0 and B c → D s + D 0 π + D − as promising channels to observe the tetraquark states T c c ( * ) and T c c s