evolution of the light meson resonances
School of Physics, Southeast University, 211189, Nanjing, China
2 Department of Physics and Hebei Advanced Thin Films Laboratory, Hebei Normal University, 050024, Shijiazhuang, China
Accepted: 10 May 2021
Published online: 28 May 2021
The variation of the resonance poles, i.e., the mass and width, originating from changing the values of , the number of the QCD colors, provide an intuitive theoretical method to discriminate the interior constituents of hadrons. Many different approaches, including unitarized chiral amplitudes, dispersive methods, quark models, linear-sigma-model-like framework, etc., have been widely used to determine the trajectories of the various resonance pole positions. We focus on the discussions of the light-flavor meson resonances in this work.
© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2021