Properties and composition of the $f_0(500)$ resonance
J.R. Pelaez, J. Nebreda, G. R\'ios, J. Ruiz de Elvira
TL;DR
This paper reviews recent theoretical developments in understanding the nature of the f_0(500) resonance, focusing on N_c expansion, dispersion relations, and sum rules to clarify its properties.
Contribution
It provides a comprehensive analysis combining multiple theoretical approaches to elucidate the properties of the sigma meson.
Findings
Insights into the nature of the f_0(500) resonance from N_c expansion
Application of dispersion relations with Chiral Perturbation Theory
Use of finite energy sum rules and semi-local duality
Abstract
In this talk we review our recent developments on the understanding of the nature of the f_0(500) resonance---or sigma meson---coming from the N_c expansion, dispersion relations with Chiral Perturbation Theory, as well as finite energy sum rules and semi-local duality.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Black Holes and Theoretical Physics