2023/11/03 by Huimin Yang, Hua-Xing Chen, Yang, Hui-Min +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2311.01991
openalex publication_date 2023/11/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We conduct an investigation on the 1P- and 2P-wave charmed baryons using the methods of QCD sum rules and light-cone sum rules within the framework of heavy quark effective theory. Our results suggest that the Λc(2910)+, Λc(2940)+, and Ξc(3123)+ can be well interpreted as the 2P-wave charmed baryons of JP=1/2- and 3/2-, belonging to the SU(3) flavor 3F representation. Moreover, the Ξc(3123)+ possesses a partner state characterized by JP=1/2-, denoted as Ξc(1/2-,2P). Our analysis predicts its mass and width to be mΞc(1/2-,2P) - mΞc(3123)+ = -18±7MeV and ΓΞc(2P,1/2-)=31+170-27MeV, with mΞc(3123)+ = 3122.9±1.3MeV. We propose to search for it in the Ξc(1/2-,2P)→ Σc K decay channel.