2025/06/24 by S. S. Agaev, K. Azizi, Agaev, S. S. +3
Chemistry · Physics and Astronomy · Materials Science · #Inorganic Fluorides and Related Compounds #Atomic and Subatomic Physics Research #Magnetism in coordination complexes
paper · pdf · doi:10.48550/arxiv.2506.19927
Mass and full width of the heavy scalar molecule M composed of the mesons Bc+ and Bc- are calculated in the QCD sum rule framework. To find its mass and current coupling, we apply the two-point sum rule method. The width of the hadronic molecule M =Bc+Bc- is evaluated by taking into account its dissociation to ηcηb, J/ψΥ, and Bc+Bc- mesons. Decays into D and B meson pairs with appropriate charges and quantum numbers triggered by bb and cc annihilations to light quark-antiquarks are also included in the analyses. Because the partial widths of M molecule's decay channels depend on the strong couplings at M-meson-meson vertices, we estimate them by invoking tools of the three-point sum rule method. Our predictions m=(12725 ± 85)~ MeV and Γ[ M]=(155 ± 23)~ MeV for the parameters of the molecule M provide useful information for experimental studies of numerous heavy resonances.