2024/10/01 by S. S. Agaev, K. Azizi, Agaev, S. S. +3
Mathematics · Physics and Astronomy · #Advanced Differential Equations and Dynamical Systems #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Nonlinear Waves and Solitons
paper · pdf · doi:10.48550/arxiv.2410.00575
openalex publication_date 2024/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Mass and width of a hidden charm-bottom axial-vector structure T containing bc bc quarks are calculated in QCD sum rule framework. It is treated as a diquark-antidiquark state built of scalar diquark and axial-vector antidiquark components. The mass of T is computed using the two-point sum rule method. The width of this particle is evaluated by considering eight decay modes: The decays to ηbJ/ψ, ηcΥ(1S), Bc-Bc∗ +, and Bc+Bc∗ - are dissociation processes, in which all initial quarks are distributed between the final-state particles. The decays to DD and BB mesons with appropriate charges and spin-parities are channels generated due to the annihilations of bb and cc quarks from T. Partial widths for all of these processes are obtained by employing the three-point sum rule approach necessary to find the strong couplings at relevant tetraquark-meson-meson vertices. Our results for the mass m=(12715± 90)~MeV and width Γ[T] =(140 ± 13)~ MeV of the tetraquark T, as well as its numerous decay channels explored in this article are useful for ongoing and future experimental investigations of fully heavy resonances.