QCD phase structure from functional methods

• Verfasst von: Gao, Fei [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Titel: QCD phase structure from functional methods
• Verf.angabe: Fei Gao and Jan M. Pawlowski
• E-Jahr: 2020
• Jahr: 25 August 2020
• Umfang: 17 S.
• Illustrationen: Illustrationen
• Fussnoten: Gesehen am 24.09.2020
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2020
• Band/Heft Quelle: 102(2020,3) Artikel-Nummer 034027, 17 Seiten
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.102.034027
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1733669388

Abstract

We discuss the QCD phase structure at finite temperature and chemical potential for 2-flavor and 2+1-flavor QCD. The results are achieved by computing QCD correlation functions within a generalized functional approach that combines Dyson-Schwinger equations (DSE) and the functional renormalization group (fRG). In this setup fRG precision data from [A. K. Cyrol, M. Mitter, J. M. Pawlowski, and N. Strodthoff, Phys. Rev. D 97, 054006 (2018).] for the vacuum quark-gluon vertex and gluon propagator of 2-flavor QCD used as input, and the respective DSEs are expanded about this input. While the vacuum results for other correlation functions serve as a self-consistency check for functional approaches, the results at finite temperature and density are computed, for the first time, without the need of phenomenological infrared parameters.