61986 20190709135432.0 doi 10.1103/PhysRevD.96.014505 sideral 100945 ART-2017-100945 eng (orcid)0000-0002-8215-1413 Azcoiti, Vicente Universidad de Zaragoza Topology in the SU (Nf) chiral symmetry restored phase of unquenched QCD and axion cosmology. II. 2017 Access copy available to the general public Unrestricted We investigate the physical consequences of the survival of the effects of the U(1)A anomaly in the chiral symmetric phase of QCD, and show that the free energy density is a singular function of the quark mass m, in the chiral limit, and that the s and p- susceptibilities diverge in this limit at any T=Tc. We also show that the difference between the p- and d- susceptibilities diverges in the chiral limit at any T=Tc, a result which seems to be excluded by recent results of Tomiya et al. from numerical simulations of two-flavor QCD. We also discuss on the generalization of these results to the Nf=3 model. info:eu-repo/grantAgreement/ES/MINECO/FPA2015-65745-P info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.394 2017 ASTRONOMY & ASTROPHYSICS 15 / 66 = 0.227 2017 Q1 T1 PHYSICS, PARTICLES & FIELDS 7 / 29 = 0.241 2017 Q1 T1 1.801 2017 Physics and Astronomy (miscellaneous) 2017 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2004 405 Universidad de Zaragoza Dpto. Física Teórica Área Física Teórica 96, 1 (2017), 0145051-0145056 Phys. rev. D PHYSICAL REVIEW D 2470-0010 119718 http://zaguan.unizar.es/record/61986/files/texto_completo.pdf Versión publicada 123069 http://zaguan.unizar.es/record/61986/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:61986 articulos driver 2019-07-09-11:32:33 ARTICLE