Non-perturbative quark, gluon and meson correlators of unquenched QCD

• Verfasst von: Cyrol, Anton Konrad [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Verfasst von: Mitter, Mario [VerfasserIn]
• Verfasst von: Strodthoff, Nils [VerfasserIn]
• Titel: Non-perturbative quark, gluon and meson correlators of unquenched QCD
• Verf.angabe: Anton K. Cyrol, Mario Mitter, Jan M. Pawlowski, und Nils Strodthoff
• E-Jahr: 2017
• Jahr: 20 Jun 2017
• Umfang: 23 S.
• Fussnoten: Gesehen am 06.11.2020
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2017
• Band/Heft Quelle: (2017) Artikel-Nummer 1706.06326, 23 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: High Energy Physics - Phenomenology
• Sach-SW: High Energy Physics - Theory
• Sach-SW: High Energy Physics - Lattice
• K10plus-PPN: 156576918X

Abstract

We present non-perturbative first-principle results for quark-, gluon- and meson $1$PI correlation functions of two-flavour Landau-gauge QCD in the vacuum. These correlation functions carry the full information about the theory. They are obtained by solving their Functional Renormalisation Group equations in a systematic vertex expansion, aiming at apparent convergence. This work represents a crucial prerequisite for quantitative first-principle studies of the QCD phase diagram and the hadron spectrum within this framework. In particular, we have computed the gluon, ghost, quark and scalar-pseudoscalar meson propagators, as well as gluon, ghost-gluon, quark-gluon, quark, quark-meson, and meson interactions. Our results stress the crucial importance of the quantitatively correct running of different vertices in the semi-perturbative regime for describing the phenomena and scales of confinement and spontaneous chiral symmetry breaking without phenomenological input.