Nature of the light scalar mesons
J. Vijande, A. Valcarce, F. Fernandez, B. Silvestre-Brac
Abstract
Despite the apparent simplicity of meson spectroscopy, light scalar mesons cannot be accommodated in the usual q q structure. We study the description of the scalar mesons below 2 GeV in terms of the mixing of a chiral nonet of tetraquarks with conventional q q states. A strong diquark-antidiquark component is found for several states. The consideration of a glueball as dictated by quenched lattice QCD drives a coherent picture of the isoscalar mesons.
Create a lesson
Related papers
Cross-Moment Consistency and the Fifth Adler Coefficient in Hadronic Tau Decays
Gauhar Abbas, Debabina Biswas, Pratham Dadhich et al.
Ground-State Heavy-Baryon Mass Spectrum in the Relativistic Independent Quark Model
Divyajyoti Pandey, Kalpalata Dash, Sanjay Kumar Swain
Born spreading with consistent shower starting scales in MC@NLO and FxFx merging
Rikkert Frederix, Paolo Torrielli
Earthquake Forecast via Neutrino Tomography at the DUNE Baseline
Bipin Singh Koranga, Samrat Vashisht, Vivek Kumar Nautiyal
Light (anti)nuclei production via coalescence in electron-proton collisions: from HERA to EIC
Niccolò Ciavarelli, Francesco Noferini, Francesca Bellini
Heavy quarkonium spin transport in a hot medium
Nora Brambilla, Shuo Fang, Tom Magorsch et al.