2020/01/31 by A. M. Badalian, М. С. Лукашов, M. S. Lukashov +1
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Geology #Geometry #Mathematical physics #Mathematics #Mechanism (biology) #Nuclear physics #Paleontology #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scalar (mathematics) #Theoretical physics #Type (biology) #hep-lat #hep-ph
paper · pdf · doi:10.1103/physrevd.102.094012
published as Phys. Rev. D 102, 094012 (2020) · v2: 22 pages, 5 figures; new explanations are added, several important insertions are made, the list of references is enlarged
arxiv created 2020/08/06 · openalex publication_date 2020/11/13 · arxiv updated 2020/11/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The physical masses of the lowest scalar mesons strongly disagree with the calculated qq pole values. It is the purpose of this paper to explain theoretically the unusual spectrum of scalar mesons for both the ground and excited states, using the known spectra of the corresponding qq states and their connection to the meson resonances. The well-known Cornell coupled-channel mechanism is exploited for this connection together with the quark-chiral Lagrangian without fitting parameters. In addition to the scalars previously obtained using this method, f0(500), f0(980), a0(980), we predict all ground and first excited scalar states, f0(500), f0(980), a0(980), a0(1450), K0*(700), K0*(1430), f0(1370), f0(1710), which are in reasonably good agreement with experimental data.