Exploring the properties of low-lying excited Ξc and Ξc' baryons
Abstract
Motivated by the rapidly accumulating experimental data, we systematically calculate the Ξc and Ξc' mass spectra for the 1S-, 1P-, and 1D-wave states and investigate the strong decay properties of the 1P- and 1D-wave states, thereby interpreting the internal structure of the currently controversial excited states and providing useful guidance for future experimental searches. The main conclusions are summarized as follows. Ξc(2790) and Ξc(2815) can be well explained as Ξc1P|JP=1/2-,1⟩λ and Ξc1P|JP=3/2-,1⟩λ, respectively. Ξc(2882) may correspond to Ξc1P|JP=1/2-,0⟩ρ or Ξc1P|JP=1/2-,1⟩ρ; under this interpretation, Ξcπ and Ξc'π would be promising channels for its detection. Ξc(2923) might be assigned to Ξc'1P|JP=3/2-,1⟩λ, but further confirmation is required. Ξc(2939) is very likely to be Ξc'1P|JP=3/2-,2⟩λ and has a good potential to be observed in the final states Ξcπ and Ξc'*π. Ξc(2965) can be explained as Ξc'1P|JP=5/2-,2⟩λ and Ξcπ decay channel is a promising additional mode for future experimental searches. Ξc(3055) and Ξc(3080) can be assigned as the quark configurations Ξc1D|JP=3/2+,2⟩λλ and Ξc1D|JP=5/2+,2⟩λλ, respectively. Ξc(3123) is possibly state Ξc'1D|JP=1/2+,1⟩λλ or Ξc'1D|JP=5/2+,3⟩λλ, with the latter being more favorable. Decay channels Λ/ΣD are very likely to serve as a criterion for distinguishing between these two possible candidates.
Related
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BibTeX
@misc{wang2026exploring,
title = {{Exploring the properties of low-lying excited $Ξ_c$ and $Ξ_c'$ baryons}},
author = {Yi-Heng Wang and Xin-Yu Chang and Hui-Hua Zhong and Li-Ye Xiao},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.00666},
eprint = {2611.00666},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.00666},
}
RIS
TY - UNPB
TI - Exploring the properties of low-lying excited Ξ_c and Ξ_c' baryons
AU - Yi-Heng Wang
AU - Xin-Yu Chang
AU - Hui-Hua Zhong
AU - Li-Ye Xiao
PY - 2026
DA - 2026/11/01
PB - arXiv
DO - 10.48550/arxiv.2611.00666
UR - https://arxiv.org/abs/2611.00666
AB - Motivated by the rapidly accumulating experimental data, we systematically calculate the Ξ_c and Ξ_c' mass spectra for the 1S-, 1P-, and 1D-wave states and investigate the strong decay properties of the 1P- and 1D-wave states, thereby interpreting the internal structure of the currently controversial excited states and providing useful guidance for future experimental searches. The main conclusions are summarized as follows. Ξ_c(2790) and Ξ_c(2815) can be well explained as Ξ_c1P|J^P=1/2^-,1⟩_λ and Ξ_c1P|J^P=3/2^-,1⟩_λ, respectively. Ξ_c(2882) may correspond to Ξ_c1P|J^P=1/2^-,0⟩_ρ or Ξ_c1P|J^P=1/2^-,1⟩_ρ; under this interpretation, Ξ_cπ and Ξ_c'π would be promising channels for its detection. Ξ_c(2923) might be assigned to Ξ_c'1P|J^P=3/2^-,1⟩_λ, but further confirmation is required. Ξ_c(2939) is very likely to be Ξ_c'1P|J^P=3/2^-,2⟩_λ and has a good potential to be observed in the final states Ξ_cπ and Ξ_c'^*π. Ξ_c(2965) can be explained as Ξ_c'1P|J^P=5/2^-,2⟩_λ and Ξ_cπ decay channel is a promising additional mode for future experimental searches. Ξ_c(3055) and Ξ_c(3080) can be assigned as the quark configurations Ξ_c1D|J^P=3/2^+,2⟩_λλ and Ξ_c1D|J^P=5/2^+,2⟩_λλ, respectively. Ξ_c(3123) is possibly state Ξ_c'1D|J^P=1/2^+,1⟩_λλ or Ξ_c'1D|J^P=5/2^+,3⟩_λλ, with the latter being more favorable. Decay channels Λ/ΣD are very likely to serve as a criterion for distinguishing between these two possible candidates.
ER -