activity
20022026
most citedLight scalar and vector mesons in the large limit from unitarized chiral perturbation theory

5 citations · 9 across the 5 of their papers we have counts for

collaborators

6 papers

hep-ph2026

The unintuitive SU(3) flavor and chiral limits of hadron resonances

José Ramón Peláez, Pablo Rabán, Jacobo Ruiz de Elvira

Contrary to naive expectations, poles used to define hadron resonances rigorously in the physical world may not evolve continuously to become degenerate in the SU(3) and chiral…

hep-ph2025

Light Meson Resonances

J. R. Pelaez

We provide a modern pedagogical introduction to light mesons. We discuss their masses and widths, their classification into multiplets of isospin and flavor SU(3), as well as other…

hep-ph2013

Properties and composition of the resonance

J. R. Pelaez, J. Nebreda, G. Ríos +1

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 w…

hep-ph2005★ 5 cited

Light scalar and vector mesons in the large limit from unitarized chiral perturbation theory

J. R. Pelaez

We review the large Nc behavior of light scalar and vector resonances generated from unitarized meson-meson scattering amplitudes at one loop in Chiral Perturbation Theory. The vec…

hep-ph2005★ 4 cited

Comments on the large Nc behavior of light scalars

J. R. Pelaez

I review the large Nc behavior of light resonances generated from unitarized one-loop Chiral Perturbation Theory. In contrast with the rho or K*, the scalar behavior is at odds wit…

hep-ph2002

On the role of the strange quark and its mass in the chiral phase transition

J. R. Pelaez

The evolution of the chiral condensate with the temperature is studied using SU(3) Chiral Perturbation Theory and the virial expansion. We observe a large decrease of the melting t…