000070308 001__ 70308
000070308 005__ 20191127155501.0
000070308 0247_ $$2doi$$a10.1051/epjconf/201817504007
000070308 0248_ $$2sideral$$a105786
000070308 037__ $$aART-2018-105786
000070308 041__ $$aeng
000070308 100__ $$0(orcid)0000-0002-8215-1413$$aAzcoiti, V.$$uUniversidad de Zaragoza
000070308 245__ $$aTopology in the SU (Nf) chiral symmetry restored phase of unquenched QCD and axion cosmology
000070308 260__ $$c2018
000070308 5060_ $$aAccess copy available to the general public$$fUnrestricted
000070308 5203_ $$aThe axion is one of the more interesting candidates to make the dark matter of the universe, and the axion potential plays a fundamental role in the determination of the dynamics of the axion field. Moreover, the way in which the U(1)A anomaly manifests itself in the chiral symmetry restored phase of QCD at high temperature could be tested when probing the QCD phase transition in relativistic heavy ion collisions. With these motivations, 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 IF 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 that can be contrasted with the existing lattice calculations; and discuss on the generalization of these results to the Nf >= 3 model.
000070308 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/FPA2015-65745-P
000070308 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000070308 592__ $$a0.182$$b2018
000070308 593__ $$aPhysics and Astronomy (miscellaneous)$$c2018
000070308 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000070308 7102_ $$12004$$2405$$aUniversidad de Zaragoza$$bDpto. Física Teórica$$cÁrea Física Teórica
000070308 773__ $$g175 (2018), 04007 [6 pp]$$pEPJ web conf.$$tEPJ web of conferences$$x2101-6275
000070308 8564_ $$s148001$$uhttp://zaguan.unizar.es/record/70308/files/texto_completo.pdf$$yVersión publicada
000070308 8564_ $$s75062$$uhttp://zaguan.unizar.es/record/70308/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000070308 909CO $$ooai:zaguan.unizar.es:70308$$particulos$$pdriver
000070308 951__ $$a2019-11-27-15:50:09
000070308 980__ $$aARTICLE