Decay patterns of low-lying $N_{s\bar{s}}$ states to the strangeness channels

Abstract

Here we investigate the decay patterns of the low-lying hidden strangeness nucleon resonances ($\equiv N_{s\bar{s}}$) to the strangeness channels by employing the chiral Lagrangian approach, where the $N_{s\bar{s}}$ states are treated as compact pentaquark states. The $S$-wave decays of these states to the $PB$ (pseudoscalar meson and baryon) and $VB$ (vector meson and baryon) channels are studied. According to the obtained masses and decay properties, we find four states, namely, $N_{s\bar{s}}(1874)$ with quantum numbers $I(J^P)=1/2(1/2^{-})$, $N_{s\bar{s}}(1885)$ with $I(J^P)=1/2(3/2^{-})$, $N_{s\bar{s}}(2327)$ with $I(J^P)=1/2(1/2^{-})$, and $N_{s\bar{s}}(2252)$ with $I(J^P)=1/2(3/2^{-})$, may be associated to the well established nucleon resonances $N^{\ast }(1895)$, $N^{\ast }(1875)$, and the newly predicted $N^{\ast }(2355)$ and $N^{\ast }(2250)$ by CLAS collaboration, respectively. In addition, several other obtained hidden strangeness nucleon resonances may be expected to be dominant components of the predicted missing resonances in the literatures.

17 pages, 2 figures

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Cited by in corpus (7)

• Nucleon Resonances with Hidden Charm in $\gamma p$ reactions
• Photoproduction of hidden-bottom pentaquark and related topics
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Spectral function of the ${\eta }^{\prime }$ meson in nuclear medium based on phenomenological models
• Prospects for detecting the hidden-strange pentaquarklike state $N^{\ast }(2080)$ in the ${\pi }^{-}p\to \varphi n$ reaction
• The ${\Omega }_{cc}$ resonances with negative parity in the chiral constituent quark model
• Low-energy $N\varphi$ scattering from a pole-enhanced triangle diagram