P-Wave hyperons in nonperturbative quark dynamics View Full Text


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Article Info

DATE

2008-02

AUTHORS

O. N. Driga, I. M. Narodetskii, A. I. Veselov

ABSTRACT

We carry out an investigation of the P-wave hyperons Λ Σ, and ξ employing the field correlator method in QCD. This method allows us to derive the effective Hamiltonian (EH) approach successfully applied to the meson and ground-state baryon spectra. The EH is written in the form of the nonrelativistic three-quark Hamiltonian with perturbative Coulomb-like and nonperturbative string interactions and the specific mass term. We solve the three-quark problem using the hyperspherical approach. With only two parameters, the string tension σ and the strong coupling constant αs, a unified quantitative description of the ground and excited hyperon states is achieved. In particular, we predict that all the hyperon states have the similar cost (in Δ) ∼460 MeV. More... »

PAGES

335-342

References to SciGraph publications

  • 2004-04. Ground-state baryons in nonperturbative quark dynamics in PHYSICS OF ATOMIC NUCLEI
  • Identifiers

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    http://scigraph.springernature.com/pub.10.1134/s1063778808020142

    DOI

    http://dx.doi.org/10.1134/s1063778808020142

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