Thermal hadron resonances in chiral and U(1)A restoration


  • Angel Gómez Nicola Universidad Complutense de Madrid
  • J. Ruiz de Elvira Universidad Complutense de Madrid
  • A. Vioque-Rodríguez Universidad Complutense de Madrid



Hadron physics, QCD phase diagram, thermal resonances


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 ƒ0 (500) and K∗ 0 (700) states generated from ππ and πK 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.


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How to Cite

Gómez Nicola A, Ruiz de Elvira J, Vioque-Rodríguez A. Thermal hadron resonances in chiral and U(1)A restoration. Supl. Rev. Mex. Fis. [Internet]. 2022 Jun. 18 [cited 2022 Dec. 9];3(3):03080119 1-6. Available from: