Open AccessQuarkoniumlike mesons in the diabatic approach
Author(s) -
R. Bruschini
Publication year - 2022
Publication title -
suplemento de la revista mexicana de física
Language(s) - English
Resource type - Journals
ISSN - 2683-2585
DOI - 10.31349/suplrevmexfis.3.0308033
Subject(s) - meson , diabatic , physics , quarkonium , particle physics , lattice qcd , quark , quantum chromodynamics , string (physics) , lattice (music) , lattice field theory , adiabatic process , theoretical physics , quantum mechanics , acoustics
The Born-Oppenheimer approximation provides a description of heavy-quark mesons firmly based on quenched Lattice QCD. The diabatic framework extends this description through the incorporation of unquenched Lattice QCD data on string breaking. This allows for a unified description of conventional quarkonium, made of QQbar, and unconventional quarkoniumlike mesons, containing meson-meson components as well. A successful description of the charmoniumlike and bottomoniumlike spectra comes out.