Baryonic currents and their correlators in the Heavy Quark Effective Theory
High Energy Physics - Phenomenology
2010-11-01 v1
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.
Cite
@article{arxiv.hep-ph/9908364,
title = {Baryonic currents and their correlators in the Heavy Quark Effective Theory},
author = {A. G. Grozin and O. I. Yakovlev},
journal= {arXiv preprint arXiv:hep-ph/9908364},
year = {2010}
}
Comments
Old preprint. Plots for baryon Isgur-Wise functions changed as compared with the published paper