Two-loop anomalous dimensions for currents of baryons with two heavy quarks in NRQCD

Details Two-loop anomalous dimensions for currents of baryons with two heavy quarks in NRQCD Two-loop anomalous dimensions for currents of baryons with two heavy quarks in NRQCD

1998-10-08

arxiv.org/abs/hep-ph/9810283v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex file, 13 page, 1 postscript figure

Scientific paper

We present analytical results on the two-loop anomalous dimensions of currents for baryons, containing two heavy quarks $J = [Q^{iT}C\Gamma\tau Q^j]\Gamma' q^k\epsilon_{ijk}$ with arbitrary Dirac matrices $\Gamma$ and $\Gamma'$ in the framework of NRQCD in the leading order over both the relative velocity of heavy quarks and the inverse heavy quark mass. It is shown, that in this approximation the anomalous dimensions do not depend on the Dirac structure of the current under consideration.

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