Chiral and U(1)A restoration: Ward Identities and effective theories

Gómez Nicola, Ángel; Ruiz de Elvira, Jacobo; Vioque-Rodríguez, Andrea; Ferreres-Solé, Silvia (26 September 2019). Chiral and U(1)A restoration: Ward Identities and effective theories. PoS - proceedings of science, 336. Trieste, Italy: Scuola Internazionale Superiore di Studi Avanzati SISSA 10.22323/1.336.0153

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We discuss our recent results regarding chiral and U (1)A restoration, both from the formal point of view of QCD Ward Identities (WI) and from an Effective Theory analysis provided by U(3) Chiral Perturbation Theory (ChPT) at finite temperature. Our results lead to relevant conclusions regarding the behavior of chiral partners (in terms of susceptibilities) in the limit of exact restora- tion and provide useful results for lattice analysis. In addition, it helps to understand the tem- perature dependence of lattice screening masses in terms of quark condensate combinations. The U(3) ChPT calculation supports the conclusions obtained within the WI analysis. Finally, the role of the thermal f0(500) state in chiral symmetry restoration, regarding the scalar susceptibility, is also discussed.

Item Type:

Conference or Workshop Item (Paper)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Ruiz de Elvira Carrascal, Jacobo

Subjects:

500 Science > 530 Physics

ISSN:

1824-8039

Publisher:

Scuola Internazionale Superiore di Studi Avanzati SISSA

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

05 Nov 2019 11:33

Last Modified:

05 Nov 2019 11:33

Publisher DOI:

10.22323/1.336.0153

ArXiv ID:

1812.04516

BORIS DOI:

10.7892/boris.134330

URI:

https://boris.unibe.ch/id/eprint/134330

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