2024/07/01 by Kan Chen, Bo Wang, Chen, Kan +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #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.2407.01185
openalex publication_date 2024/07/01 · openalex created_date 2024/07/06 · openalex updated_date 2026/07/28
We investigate the interactions of the (cq)(cq)/(ccq)(cq)/(ccq)(ccq) di-hadron systems based on a contact lagrangian possessing the SU(3) flavor and SU(2) spin symmetries. Under the assumptions of two scenarios for the JP quantum numbers of the PψN(4440) and PψN(4457) states, we obtain the parameters (gs, ga) introduced from this contact lagrangian. Then we include the SU(3) breaking effect by introducing a factor gx, this quantity can be further constrained by the experimental mass of the PψsΛ(4338) state. We can reproduce the mass of the Tfcc(3875) state with the parameters extracted from the observed PψN states, this consistency indicates a unified description of the di-hadron molecular states composed of two heavy-light hadrons. With the same parameters, we discuss the possible mass spectra of the Tccf/PψcΛ/H_ΩccccΛ systems. Then we proceed to discuss the existences of the T_ccsθ/PψcsN/H_ΩccccsN states by investigating the SU(3) breaking effects. Our results show that the states in the T_ccsθ/PψcsN systems can hardly form bound states, while the states in the H_ΩccccsN system can form bound states due to their larger reduced masses.