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

J. R. Pelaez; J. Nebreda; G. Ríos; J. Ruiz de Elvira

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

High Energy Physics - Phenomenology 2013-04-25 v2

Authors: J. R. Pelaez , J. Nebreda , G. Ríos , J. Ruiz de Elvira

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.

Keywords

f_0(500) resonance sigma meson N_c expansion Chiral Perturbation Theory dispersion relations finite energy sum rules semi-local duality

Cite

@article{arxiv.1304.5121,
  title  = {Properties and composition of the $f_0(500)$ resonance},
  author = {J. R. Pelaez and J. Nebreda and G. Ríos and J. Ruiz de Elvira},
  journal= {arXiv preprint arXiv:1304.5121},
  year   = {2013}
}

Comments

To appear in the proceedings of the "Excited QCD" workshop. Bjeliasnica Mountain, Sarajevo, 3-9 February 2013. Additional lattice references added in this version

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

Abstract

Keywords

Cite

Comments

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