TU Darmstadt / ULB / TUprints

Baryon number fluctuations in the QCD phase diagram from Dyson-Schwinger equations

Isserstedt, Philipp ; Buballa, Michael ; Fischer, Christian S. ; Gunkel, Pascal J. (2022):
Baryon number fluctuations in the QCD phase diagram from Dyson-Schwinger equations. (Publisher's Version)
In: Physical Review D, 100 (7), American Physical Society, ISSN 2470-0029,
DOI: 10.26083/tuprints-00012680,
[Article]

[img]
Preview
Text
PhysRevD.100.074011.pdf
Available under: CC BY 4.0 International - Creative Commons, Attribution.

Download (637kB) | Preview
Item Type: Article
Origin: Secondary publication
Status: Publisher's Version
Title: Baryon number fluctuations in the QCD phase diagram from Dyson-Schwinger equations
Language: English
Abstract:

We present results for fluctuations of the baryon number for QCD at nonzero temperature and chemical potential. These are extracted from solutions to a coupled set of truncated Dyson-Schwinger equations for the quark and gluon propagators of Landau-gauge QCD with Nf=2+1 quark flavors, that has been studied previously. We discuss the changes of fluctuations and ratios thereof up to fourth order for several temperatures and baryon chemical potential up to and beyond the critical endpoint. In the context of preliminary STAR data for the skewness and kurtosis ratios, the results are compatible with the scenario of a critical endpoint at large chemical potential and slightly offset from the freeze-out line. We also discuss the caveats involved in this comparison.

Journal or Publication Title: Physical Review D
Journal volume: 100
Issue Number: 7
Publisher: American Physical Society
Collation: 12 Seiten
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Nuclear Physics
05 Department of Physics > Institute of Nuclear Physics > Theoretische Kernphysik
05 Department of Physics > Institute of Nuclear Physics > Theoretische Kernphysik > Kernphysik und Nukleare Astrophysik
Date Deposited: 07 Mar 2022 13:39
Last Modified: 10 Mar 2022 09:52
DOI: 10.26083/tuprints-00012680
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-126809
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/12680
Export:
Actions (login required)
View Item View Item