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On the nature of $\Xi_c(2930)$

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arxiv 1803.04002 v3 pith:ZW4WZGI4 submitted 2018-03-11 hep-ph hep-exhep-lat

classification hep-phhep-exhep-lat
keywords stateexcitedbaryoncharmednaturenumbersquantumsingle
verification ladder T0 review T1 audit T2 compute T3 formal
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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 $J^P=\frac{1}{2}^{-}$.

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Cited by 1 Pith paper

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  1. Radiative decays of $P$-wave charmed baryons in the $SU(3)$ flavor $\bf6_F$ representation

    hep-ph 2025-06 conditional novelty 6.0 of 10

    The authors predict radiative decay widths for all P-wave charmed baryons in the 6F representation, and propose Omega_c gamma channels as the best route to identify the excited Omega_c states seen at LHCb.

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