Interpretation of the excited Ωc family via mass and width in the chiral quark model
Abstract
In this work, the mass and decay properties for low-lying orbital excitations of Ωc baryons are investigated within the chiral quark model combined with the 3P0 decay mechanism. Following the LHCb Collaboration's observations, we extend our previous study of the Ξc′ system to the Ωc system, with all model parameters inherited from our earlier work. Our results consistently describe the observed Ωc spectrum: Ωc(3000), Ωc(3050), Ωc(3065), and Ωc(3090) are well described as λ-mode 1P states with JP=1/2-, 3/2-, 3/2-, and 5/2-, respectively. Ωc(3119) cannot be described as a pure three-quark excitation. Furthermore, the Ωc(3185) and Ωc(3327) may be assigned to the 2S and 1D states, respectively. These results offer a coherent picture of the low-lying Ωc spectrum and motivate further experimental tests.
Related
- Complex potential and the thermal width of quarkonium in quark-gluon plasma
- Higher excited charmed and charmed-strange mesons in an unquenched quark model
- Energy shift and decay width of kaonium from coupled-channel one-loop chiral amplitudes
- Top-quark mass interpretation from simulation of top-flavoured mesons
- Top-quark mass interpretation from simulation of top-flavoured mesons
BibTeX
@misc{hu2026interpretation,
title = {{Interpretation of the excited $Ω_c$ family via mass and width in the chiral quark model}},
author = {Xiao-Huang Hu and Zhe-Tao Miu and Yue Tan and Qi Huang and Ye Yan and Jia-Lun Ping},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.14628},
eprint = {2609.14628},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.14628},
note = {CC0},
}
RIS
TY - UNPB
TI - Interpretation of the excited Ω_c family via mass and width in the chiral quark model
AU - Xiao-Huang Hu
AU - Zhe-Tao Miu
AU - Yue Tan
AU - Qi Huang
AU - Ye Yan
AU - Jia-Lun Ping
PY - 2026
DA - 2026/09/15
PB - arXiv
DO - 10.48550/arxiv.2609.14628
UR - https://arxiv.org/abs/2609.14628
AB - In this work, the mass and decay properties for low-lying orbital excitations of Ω_c baryons are investigated within the chiral quark model combined with the ^3P_0 decay mechanism. Following the LHCb Collaboration's observations, we extend our previous study of the Ξ_c^′ system to the Ω_c system, with all model parameters inherited from our earlier work. Our results consistently describe the observed Ω_c spectrum: Ω_c(3000), Ω_c(3050), Ω_c(3065), and Ω_c(3090) are well described as λ-mode 1P states with J^P=1/2^-, 3/2^-, 3/2^-, and 5/2^-, respectively. Ω_c(3119) cannot be described as a pure three-quark excitation. Furthermore, the Ω_c(3185) and Ω_c(3327) may be assigned to the 2S and 1D states, respectively. These results offer a coherent picture of the low-lying Ω_c spectrum and motivate further experimental tests.
ER -