On the nature of ${\Xi }_c(2930)$

Abstract

The single charmed excited ${\Xi }_c(2930)$ state was discovered many years ago by BABAR collaboration and recently confirmed by Belle experiment. However, both of these experiments, unfortunately, could not fix the quantum numbers of this particle and its nature is under debates. In the present study, we calculate its mass and width of its dominant decay to ${\Lambda }_{c}K$. To this end we consider ${\Xi }_c(2930)$ state once as angularly excited and then radially excited single charmed baryon in ${\Xi }_c$ channel. Comparison of the obtained results with the experimental data suggests assignment of ${\Xi }_c(2930)$ state as the angular excitation of the ground state ${\Xi }_c$ baryon with quantum numbers $J^P={\frac{1}{2}}^{-}$.

9 Pages, 5 Figures and 3 Tables. arXiv admin note: text overlap with arXiv:1804.02656

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Cited by in corpus (7)

• Description of the ${\Xi }_c$ and ${\Xi }_b$ states as molecular states
• $P$-wave charmed baryons of the $SU(3)$ flavor $6_F$
• Canonical interpretations of the newly observed ${\Xi }_c(2923{)}^0$, ${\Xi }_c(2939{)}^0$ and ${\Xi }_c(2965{)}^0$ resonances
• Evidence of a new excited charmed baryon decaying to ${\Sigma }_c(2455{)}^{0,++}{\pi }^{\pm }$
• Identifying the ${\Xi }_c^0$ baryons observed by LHCb as $P$-wave ${\Xi }_c^{\prime }$ baryons
• Newly discovered ${\Xi }_c^0$ resonances and their parameters
• Determination of the possible quantum numbers for the newly observed ${\Xi }_b(6227{)}^0$ state