Baryonic currents and their correlators in the heavy quark effective theory
Jul, 19929 pages
Published in:
- Phys.Lett.B 285 (1992) 254-262
- Published: 1992
e-Print:
- hep-ph/9908364 [hep-ph]
Report number:
- IC-92-153
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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 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.Note:
- Old preprint. Plots for baryon Isgur-Wise functions changed as compared with the published paper Report-no: Budker INP 92-59 (Novosibirsk, 1992), IC/92/153 (Trieste, 1992) Journal-ref: Phys. Lett. B285 (1992) 254, Phys. Lett. B291 (1992) 441
- heavy quark
- baryon: current
- current: correlation function
- operator product expansion
- renormalization
- quantum chromodynamics
- quark: condensation
- sum rule
- Lambda
- Sigma
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