2022/11/17 by Xuejie Liu, Y. T. Tan, Liu, Xuejie +9
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2211.09433
openalex publication_date 2022/11/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Inspired by the states T_cs0a(2900)0 and T_cs0a(2900)++ reported by the LHCb Collaboration, we carry out a systematical investigation of the charm-strange pentaquark system using resonance group method in the quark delocalization color screening model. The present results predict the existence of some bound states and resonance states with support from the study of the mass spectrum and the decay properties. Both Σc∗K∗ with I(JP)=(1)/(2)((5)/(2)-) and ΔDs∗ with I(JP)=(3)/(2)((5)/(2)-) are bounded by channel coupling calculation. Moreover, the resonance state ΣcK∗ with I(JP)=(1)/(2)((1)/(2)-) and I(JP)=(1)/(2)((3)/(2)-) are available in QDCSM, the masses and the total decay widths of which are (R′=3342∼3346 MeV, ΓTotal=25.5 MeV) and (R′=3333 MeV, ΓTotal=3.3 MeV), respectively. In addition, the resonance state ΔDs∗ with I(JP)=(3)/(2)((1)/(2)-) is also obtained, the mass and the decay width of this state are 3343 MeV and 0.01 MeV, respectively. These predicted new exotic states may provide new ideas for experimental searches and we sincerely expect more experimental and theoretical research to verify and understand the charm-strange pentaquark states in the future.