Strangeness neutrality and baryon-strangeness correlations

• Verfasst von: Fu, Wei-jie [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Verfasst von: Rennecke, Fabian [VerfasserIn]
• Titel: Strangeness neutrality and baryon-strangeness correlations
• Verf.angabe: Wei-jie Fu, Jan M. Pawlowski, Fabian Rennecke
• E-Jahr: 2019
• Jahr: 20 December 2019
• Umfang: 6 S.
• Fussnoten: Gesehen am 03.02.2020
• Titel Quelle: Enthalten in: Physical review
• Ort Quelle: Woodbury, NY : Inst., 2016
• Jahr Quelle: 2019
• Band/Heft Quelle: 100(2019,11) Artikel-Nummer 111501, 6 Seiten
• ISSN Quelle: 2470-0029
• DOI: doi:10.1103/PhysRevD.100.111501
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1689113707

Abstract

We derive a simple relation between strangeness neutrality and baryon-strangeness correlations. In heavy-ion collisions, the former is a consequence of quark number conservation of the strong interactions while the latter are sensitive probes of the character of QCD matter. This relation allows us to directly extract baryon-strangeness correlations from the strangeness chemical potential at strangeness neutrality. The explicit calculations are performed within a low-energy theory of QCD with 2+1 dynamical quark flavors at finite temperature and density. Nonperturbative quark and hadron fluctuations are taken into account within the functional renormalization group. The results show the pronounced sensitivity of baryon-strangeness correlations on the QCD phase transition and the crucial role that strangeness neutrality plays for this observable.