Baryonic currents and their correlators in the Heavy Quark Effective Theory
A. G. Grozin, O. I. Yakovlev
Abstract
HQET currents with the quantum numbers of the ground-state baryons are discussed. One-loop anomalous dimensions are calculated, and exact one-loop matching to QCD currents is found. Two-point correlators of these currents are calculated taking into account d9 terms of the OPE. Sum rules for heavy baryons LambdaQ and Sigma(*)Q are analyzed. Three-point correlators of two baryonic currents and a heavy-heavy velocity changing current are calculated with the same accuracy. The baryonic Isgur-Wise form factors are estimated from the corresponding sum rules.
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