Analysis of the ${\frac{1}{2}}^{\pm }$ flavor antitriplet heavy baryon states with QCD sum rules

Abstract

In this article, we study the masses and pole residues of the ${\frac{1}{2}}^{\pm }$ flavor antitriplet heavy baryon states (${\Lambda }_c^{+}$, ${\Xi }_c^{+},{\Xi }_c^0)$ and (${\Lambda }_b^0$, ${\Xi }_b^0,{\Xi }_b^{-})$ by subtracting the contributions from the corresponding ${\frac{1}{2}}^{\mp }$ heavy baryon states with the QCD sum rules, and observe the masses are in good agreement with the experimental data and make reasonable predictions for the unobserved ${\frac{1}{2}}^{-}$ bottom baryon states. Once reasonable values of the pole residues ${\lambda }_{\Lambda }$ and ${\lambda }_{\Xi }$ are obtained, we can take them as basic parameters to study the revelent hadronic processes with the QCD sum rules.

11 pages, 16 figures, published version

References in corpus (10)

• Bottom Baryons
• Heavy baryon spectroscopy in QCD
• Reanalysis of the heavy baryon states ${\Omega }_b$, ${\Omega }_c$, ${\Xi }_b^{\prime }$, ${\Xi }_c^{\prime }$, ${\Sigma }_b$ and ${\Sigma }_c$ with QCD sum rules
• Analysis of the vertexes ${\Xi }_Q^{\ast }{\Xi }_Q^{\prime }V$, ${\Sigma }_Q^{\ast }{\Sigma }_{Q}V$ and radiative decays ${\Xi }_Q^{\ast }\to {\Xi }_Q^{\prime }\gamma$, ${\Sigma }_Q^{\ast }\to {\Sigma }_Q\gamma$
• Analysis of ${\Omega }_c^{\ast }(css)$ and ${\Omega }_b^{\ast }(bss)$ with QCD sum rules
• QCD sum rules study of Ξ_c and Ξ_b baryons
• Mass spectra of the heavy baryons Lambda_Q and Sigma_Q^(*) from QCD sum rules
• Analysis of the vertexes ${\Omega }_Q^{\ast }{\Omega }_Q\varphi$ and radiative decays ${\Omega }_Q^{\ast }\to {\Omega }_Q\gamma$
• Heavy Quark Spectroscopy -- Theory Overview
• Analysis of ${\Omega }_b^{-}(bss)$ and ${\Omega }_c^0(css)$ with QCD sum rules

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• Semileptonic neutral current decays of ${\Xi }_b$ with dileptons or dineutrinos in the final state
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