The $\Omega_{c}$-puzzle solved by means of spectrum and strong decay amplitude predictions

E. Santopinto; A. Giachino; J. Ferretti; H. García-Tecocoatzi; M. A. Bedolla; M R. Bijker; E. Ortiz-Pacheco

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arXiv · 1811.01799

The $\Omega_{c}$-puzzle solved by means of spectrum and strong decay amplitude predictions

E. Santopinto·A. Giachino·J. Ferretti·H. García-Tecocoatzi·M. A. Bedolla·M R. Bijker·E. Ortiz-Pacheco

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Abstract

The observation of new $\Omega_{c}=ssc$ states by LHCb \cite{Aaij:2017nav} and the confirmation of four of them by Belle \cite{Yelton:2017qxg} may represent an important milestone in our understanding of the quark organization inside hadrons. By providing results for the spectrum of $\Omega_{c(b)}$ baryons and predictions for their $\Xi _{c(b)}^{+}K^{-}$ decay channels, we suggest a possible solution to the $\Omega_{c}$ quantum number puzzle. We also discuss why the set of $\Omega_{c(b)}$ baryons are the most suitable environment to test the validity of three-quark and quark-diquark effective degrees of freedom. Finally, we calculate the masses and the partial decay widths of the $\Xi_b(6227)$ and $\Sigma_b(6097)$ states, just observed by LHCb \cite{Aaij:2018yqz,Aaij:2018tnn}. Our results are in good agreement with LHCb experimental data.

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E. Santopinto, A. Giachino, J. Ferretti, H. García-Tecocoatzi, M. A. Bedolla, M R. Bijker, E. Ortiz-Pacheco. 2018-11-05. The $\Omega_{c}$-puzzle solved by means of spectrum and strong decay amplitude predictions. https://arxiv.org/abs/1811.01799

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