Properties of light resonances from unitarized Chiral perturbation theory: Nc behavior and quark mass dependence
J.R. Pelaez, J. Nebreda, G. Rios (u. Complutense de Madrid)
TL;DR
This paper reviews how unitarized Chiral Perturbation Theory models light meson resonances, linking their properties to fundamental QCD parameters such as quark masses and the number of colors.
Contribution
It provides a comprehensive analysis of resonance properties using unitarized Chiral Perturbation Theory, emphasizing their dependence on QCD parameters.
Findings
Resonance masses and widths depend on quark masses.
Resonance properties vary with the number of colors Nc.
The approach successfully describes meson-meson scattering data.
Abstract
We review the unitarization of Chiral Perturbation Theory with dispersion relations and how it describes meson-meson scattering data, generating light resonances whose mass, width and nature can be related to QCD parameters like quark masses and the number of colors.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Cold Atom Physics and Bose-Einstein Condensates · Particle physics theoretical and experimental studies