Thermal hadron resonances in chiral and $U(1)_A$ restoration

Angel Gómez Nicola; Jacobo Ruiz de Elvira; Andrea Vioque-Rodríguez

Thermal hadron resonances in chiral and $U(1)_A$ restoration

High Energy Physics - Phenomenology 2022-03-08 v1

Authors: Angel Gómez Nicola , Jacobo Ruiz de Elvira , Andrea Vioque-Rodríguez

Abstract

We review recent work on thermal resonances and their connection with chiral symmetry and $U(1)_A$ restoration within the QCD phase diagram. In particular, the $f_0(500)$ and $K_0^* (700)$ states generated from $\pi\pi$ and $\pi K$ scattering within Unitarized Chiral Perturbation Theory (ChPT) at finite temperature allow one to describe scalar susceptibilities, which combined with Ward Identities yield interesting conclusions regarding the interplay between chiral and $U(1)_A$ restoration, key to understand the nature of the transition

Keywords

thermal resonances chiral symmetry u(1)a restoration qcd phase diagram scalar susceptibilities unitarized chiral perturbation theory

Cite

@article{arxiv.2203.02612,
  title  = {Thermal hadron resonances in chiral and $U(1)_A$ restoration},
  author = {Angel Gómez Nicola and Jacobo Ruiz de Elvira and Andrea Vioque-Rodríguez},
  journal= {arXiv preprint arXiv:2203.02612},
  year   = {2022}
}

Comments

6 pages, 2 figures, contribution to the proceedings of the 19th International Conference on Hadron Spectroscopy and Structure (HADRON 2021). Accepted for publication in Suplemento de la Revista Mexicana de F\'isica

Thermal hadron resonances in chiral and $U(1)_A$ restoration

Abstract

Keywords

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