Spectroscopy of doubly charmed baryons: Xi(+)(cc) and Xi(++)(cc)

Using the quark-diquark approximation in the framework of Buchmuller-Tye po tential model, we investigate the spectroscopy of doubly charmed baryons: X i(cc)(++) and Xi(cc)(+). Our results include the masses, parameters of radi al wave functions of states with different excitations of both diquark and light quark-diquark system. We calculate the values of fine and hyperfine s plittings of these levels and discuss some new features, related to the ide ntity of heavy quarks, in the dynamics of hadronic and radiative transition s between the states of these baryons.