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arXiv · 1304.5121

Properties and composition of the $f_0(500)$ resonance

J. R. Pelaez·J. Nebreda·G. Ríos·J. Ruiz de Elvira
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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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J. R. Pelaez, J. Nebreda, G. Ríos, J. Ruiz de Elvira. 2013-04-24. Properties and composition of the $f_0(500)$ resonance. https://arxiv.org/abs/1304.5121

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