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نویسندگان
چکیده

Inspired by the LHCb's newest observation of two new excited $\Xi_b^0$ states, we systematically study strong decays low-lying $\lambda$- and $\rho$-modes $1D$-wave $\Xi_{b}$ $\Xi^{'}_{b}$ baryons using chiral quark model within $j$-$j$ coupling scheme. Based on measured masses decay properties $\Xi_{b}(6327)^{0}$ $\Xi_{b}(6333)^{0}$, explain states as $\lambda$-mode $1D$ with $ J^{P}=3/2^{+} J^{P}=5/2^{+} $, respectively. Moreover, under this assignment, another dominant channel is $\Xi'_b\pi$ that $\Xi_{b}(6333)^{0}$ $\Xi_b^*\pi$. Hence, modes $\Xi_b^*\pi$ may be ideal channels well to decode inner structure For other unseen $\Xi_b$ $\Xi'_b$ our results indicate: (i) $\Xi_b|J^P=\frac{3}{2}^+,2\rangle_{\rho}$ $\Xi_b|J^P=\frac{5}{2}^+,2\rangle_{\rho}$ are most likely narrow a width $\Gamma\simeq(12-30)$ MeV, dominantly into $\Sigma_bK$ $\Sigma^*_bK$, respectively; (ii) The not broad widths vary in range $\Gamma\simeq(14-46)$ MeV. These have good potential observed their processes.

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ژورنال

عنوان ژورنال: Physical review

سال: 2022

ISSN: ['2470-0037', '2470-0010', '2470-0029']

DOI: https://doi.org/10.1103/physrevd.105.074008