The European Physical Journal C

, Volume 68, Issue 3–4, pp 479–486 | Cite as

Analysis of the \({1\over2}^{\pm}\) flavor antitriplet heavy baryon states with QCD sum rules

Regular Article - Theoretical Physics

Abstract

In this article, we study the masses and pole residues of the \({1\over2}^{\pm}\) flavor antitriplet heavy baryon states (\(\varLambda _{c}^{+}\), \(\varXi _{c}^{+},\varXi _{c}^{0})\) and (\(\varLambda _{b}^{0}\), \(\varXi _{b}^{0},\varXi _{b}^{-})\) by subtracting the contributions from the corresponding \({1\over2}^{\mp}\) heavy baryon states with the QCD sum rules, and observe that the masses are in good agreement with the experimental data and make reasonable predictions for the unobserved \({1\over2}^{-}\) bottom baryon states. Once reasonable values of the pole residues λ Λ and λ Ξ are obtained, we can take them as basic parameters to study the relevant hadronic processes with the QCD sum rules.

Keywords

Heavy Quark Operator Product Expansion Pole Residue Heavy Baryon Gluon Condensate 

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2010

Authors and Affiliations

  1. 1.Department of PhysicsNorth China Electric Power UniversityBaodingP.R. China

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