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arXiv · 1705.08571

The observed $\Omega_{c}^{0}$ resonances as pentaquark states

C. S. An·H. Chen
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Abstract

In present work, we investigate the spectrum of several low-lying $sscq\bar{q}$ pentaquark configurations employing the constituent quark model, within which the hyperfine interaction between quarks is taken to be mediated by Goldstone boson exchange. Our numerical results show that four $sscq\bar{q}$ configurations with $J^{P}=1/2^{-}$ or $J^{P}=3/2^{-}$ lie at energies very close to the recently observed five $\Omega_{c}^{0}$ states by LHCb collaboration, this indicates that the $sscq\bar{q}$ pentaquark configurations may form sizable components of the observed $\Omega_{c}^{0}$ resonances.

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C. S. An, H. Chen. 2017-05-24. The observed $\Omega_{c}^{0}$ resonances as pentaquark states. https://doi.org/10.1103/physrevd.96.034012

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