Baryonic currents and their correlators in the Heavy Quark Effective Theory

Details Baryonic currents and their correlators in the Heavy Quark Effective Theory Baryonic currents and their correlators in the Heavy Quark Effective Theory

1999-08-16

arxiv.org/abs/hep-ph/9908364v1

Phys.Lett.B285:254-262,1992

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

10.1016/0370-2693(92)91462-I

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 $d\le9$ 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.

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