2024/04/05 by S. S. Agaev, K. Azizi, Agaev, S. S. +3
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.2404.04354
openalex publication_date 2024/04/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The mass and width of the tensor tetraquark T=bbcc with spin-parity JP=2+ are calculated in the context of the QCD sum rule method. The tetraquark T is modeled as a diquark-antidiquark state built of components bTCγμb and cγνCcT with C being the charge conjugation matrix. The mass m=(12.795± 0.095)~GeV of the exotic tensor meson T is found by means of the two-point sum rule approach. Its full width Γ is evaluated by considering processes T → Bc-Bc-, Bc-Bc∗ -, and Bc∗ -Bc∗ -. Partial widths of these decays are computed by means of the three-point sum rule approach which is used to determine the strong couplings at relevant tetraquark-meson-meson vertices. Predictions obtained for the width ΓT=55.5-9.9+10.6~MeV, as well as the mass of the tetraquark T can be useful in investigations of fully heavy four-quark mesons.