Baryonic currents and their correlators in the Heavy Quark Effective Theory

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 $d\le 9$ terms of the OPE. Sum rules for heavy baryons Lambda_Q 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.

Old preprint. Plots for baryon Isgur-Wise functions changed as compared with the published paper

References in corpus (2)

• Two-loop renormalization of the effective field theory of a static quark
• Operator product expansion in static-quark effective field theory: large perturbative correction

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