Pion and [eta]-meson mass splitting at the two-flavor chiral crossover

• Verfasst von: Heller, Markus [VerfasserIn]
• Verfasst von: Mitter, Mario [VerfasserIn]
• Titel: Pion and [eta]-meson mass splitting at the two-flavor chiral crossover
• Verf.angabe: Markus Heller, Mario Mitter
• E-Jahr: 2016
• Jahr: 3 October 2016
• Umfang: 7 S.
• Fussnoten: Gesehen am 12.05.2020 ; Im Titel ist "eta" als griechischer Buchstabe dargestellt
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2016
• Band/Heft Quelle: 94(2016,7) Artikel-Nummer p074002, 7 Seiten
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.94.074002
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 169793739X

Abstract

We study the splitting in the screening mass of pions and the η-meson across the chiral crossover. This splitting is determined by the ’t Hooft determinant. We use results for the renormalization group scale dependence of the ’t Hooft determinant obtained within the functional renormalization group in quenched QCD with two flavors. The scale dependence of the ’t Hooft determinant is mapped to its temperature dependence with the help of a Polyakov-quark-meson model. As a result we obtain the temperature dependence of the splitting in the screening mass of pions and the η-meson.