Properties of doubly heavy spin-12 baryons: The ground and excited states

Abstract

We determine the masses and residues of the ground and excited spin -12 baryons consist of two heavy b or c quark utilizing the QCD sum rule formalism. In the calculations, we consider the nonperturbative operators up to ten mass dimensions in order to increase the accuracy compared to the previous calculations. We report the obtained results for both the symmetric and antisymmetric currents defining the doubly heavy baryons of the ground state (1S), first orbitally excited state (1P), and first radially excited state (2S). We compare our results with the predictions of other nonperturbative approaches as well as existing experimental data which is available only for the ground state of cc channel. These predictions can help the experimental groups in their searches for all members of the doubly heavy baryons in their ground and exited states.