5–10 Sept 2021
Online
Europe/Lisbon timezone

Chiral Symmetry Restoration, Thermal Resonances and the $U(1)_A$ symmetry

7 Sept 2021, 11:19
1m
Online

Online

Poster Hot and dense matter physics - QGP and heavy ion collisions Poster Session I

Speaker

Prof. Angel Gómez Nicola (Universidad Complutense de Madrid)

Description

We review recent work on Ward Identities (WI) and Effective Theories within the context of the QCD transition at finite temperature. On the one hand, WI allow to obtain generic results on the interplay between chiral and $U(1)_A$ restoration, key to understand the nature of the transition, as well as scaling laws verified by lattice screening masses. On the other hand, thermal resonances $f_0(500)$ and $K_0^*(700)$ generated within Unitarized Chiral Perturbation Theory (ChPT) scattering at finite temperature allow to describe scalar susceptibilities around chiral and $O(4)\times U(1)_A$ restoration, in good agreement with lattice results.

Primary author

Prof. Angel Gómez Nicola (Universidad Complutense de Madrid)

Co-authors

Dr Jacobo Ruiz de Elvira (ITP, Bern U.) Ms Andrea Vioque-Rodríguez (Universidad Complutense Madrid)

Presentation materials