Chiral phase structure and critical end point in QCD

• Verfasst von: Gao, Fei [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Titel: Chiral phase structure and critical end point in QCD
• Verf.angabe: Fei Gao, Jan M. Pawlowski
• E-Jahr: 2021
• Jahr: 16 August 2021
• Umfang: 6 S.
• Fussnoten: Gesehen am 11.11.2021
• Titel Quelle: Enthalten in: Physics letters / B
• Ort Quelle: Amsterdam : North-Holland Publ., 1967
• Jahr Quelle: 2021
• Band/Heft Quelle: 820(2021), Artikel-ID 136584, Seite 1-6
• ISSN Quelle: 1873-2445
• DOI: doi:10.1016/j.physletb.2021.136584
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1777276535

Abstract

We map out the QCD phase structure at finite temperature and chemical potential for 2-flavour and 2+1-flavour QCD. This is done within a generalised functional approach to QCD put forward in [1]. Specifically we compute the quark propagator and the finite-temperature and density fluctuations of the gluon propagator and the quark-gluon vertex on the basis of precision data for vacuum correlation functions. The novel ingredient is the direct self-consistent computation of the DSEs for the three dominant dressings of the quark-gluon vertex, in contrast to the common use of STI-inspired vertices. For small densities the results for the chiral order parameter agree with the respective lattice and functional renormalisation group results, for large densities the present results are in a quantitative agreement with the latter, including the location of the critical end point.