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The European Physical Journal C

, Volume 58, Issue 3, pp 355–382 | Cite as

Heavy-baryon properties with NLO accuracy in perturbative QCD

  • S. GrooteEmail author
  • J. G. Körner
  • A. A. Pivovarov
Regular Article - Theoretical Physics

Abstract

We present an analysis of the static properties of heavy baryons at next-to-leading order in the perturbative 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.

Keywords

Spectral Density Spectral Function Heavy Quark Dirac Matrice Heavy Baryon 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2008

Authors and Affiliations

  1. 1.Institut für Physik der Johannes-Gutenberg-UniversitätMainzGermany
  2. 2.Loodus- ja TehnoloogiateaduskondTartu ÜlikoolTartuEstonia
  3. 3.Institute for Nuclear Research of the Russian Academy of SciencesMoscowRussia

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