2018/04/07 by S. S. Agaev, K. Azizi, Agaev, S. S. +3 · 2 citations
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1804.02519
openalex publication_date 2018/04/07 · openalex created_date 2018/04/13 · openalex updated_date 2026/07/28
The spectroscopic parameters and partial decay widths of the light mesons a0(980) and K0∗(800) are calculated by treating them as scalar diquark-antidiquark states. The masses and couplings of the mesons are found in the framework of QCD two-point sum rule approach. The widths of the decay channels a0(980) → ηπ and a0(980) → K K, and K0∗(800) → K+ π- and K0∗(800) → K0 π0 are evaluated using QCD sum rules on the light-cone and technical tools of the soft meson approximation. Our results for the mass of the mesons ma0=991+29-27 MeV and mK ∗=767+38-29 MeV, as well as their total width Γa0=62.01± 14.37 MeV and Γ_\mathrm K0∗=401.1± 87.1 MeV are compared with last experimental data.