Two-loop anomalous dimensions of heavy baryon currents in heavy quark effective theory

We present results on the two-loop anomalous dimensions of the heavy baryon HQET currents J=(q^TC\Gamma\tau q)\Gamma'Q with arbitrary Dirac matrices \Gamma and \Gamma'. From our general result we obtain the two-loop anomalous dimensions for currents with quantum numbers of the ground state heavy baryons \Lambda_Q, \Sigma_Q and \Sigma_Q^*. As a by-product of our calculation and as an additional check we rederive the known two-loop anomalous dimensions of mesonic scalar, pseudoscalar, vector, axial vector and tensor currents (J=\bar q\Gamma q) in massless QCD as well as in HQET