2024/03/19 by A. Alaakol, S. S. Agaev, Alaakol, A. +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #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.2403.12692
openalex publication_date 2024/03/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Masses and current couplings of the charmonium and bottomonium hybrids cgc and bgb with spin-parities JPC =0++, 0+-, 0-+, 0-- and 1++, 1+-, 1-+, 1-- are calculated using QCD two-point sum rule method. Computations are performed by taking into account gluon condensates up to dimension 12 including terms ∼ ⟨ gs3G3⟩ 2. The parameters of the bottom-charm hybrids bgc with quantum numbers JPC =0+, 0-, 1+, and 1- are calculated as well. In computations the dominance of the pole contribution to sum rule results is ensured. It is demonstrated that all charmonia hybrids decay strongly to two-meson final states. The bottomonium hybrids 0-+ and 1-+ as well as the bottom-charm hybrid mesons 0-(+) and 1-(+) may be stable against strong two-meson decay modes. Results of the present work are compared with ones obtained using the sum rule and alternative approaches. Our predictions for parameters of the heavy hybrid mesons may be useful to study their various decay channels which are important for interpretation of ongoing and future experiments.