Heavy baryon properties with NLO accuracy in perturbative QCD

Details Heavy baryon properties with NLO accuracy in perturbative QCD Heavy baryon properties with NLO accuracy in perturbative QCD

2008-07-14

arxiv.org/abs/0807.2148v1

Eur.Phys.J.C58:355-382,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

43 pages in LaTeX, including 3 figures

Scientific paper

10.1140/epjc/s10052-008-0763-7

We present an analysis of the static properties of heavy baryons at next-to-leading order in the perurbative expansion of QCD. We obtain analytical next-to-leading order three-loop results for the two-point correlators of baryonic currents with one finite mass quark field for a variety of quantum numbers of the baryonic currents. We consider both the massless limit and the HQET limit of the correlator as special cases of the general finite mass formula and find agreement with previous results. We present closed form expressions for the moments of the spectral density. We determine the residues of physical baryon states using sum rule techniques.

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