Do lattice data constrain the vector interaction strength of QCD?

  • We show how repulsive interactions of deconfined quarks as well as confined hadrons have an influence on the baryon number susceptibilities and the curvature of the chiral pseudo-critical line in effective models of QCD. We discuss implications and constraints for the vector interaction strength from comparisons to lattice QCD and comment on earlier constraints, extracted from the curvature of the transition line of QCD and compact star observables. Our results clearly point to a strong vector repulsion in the hadronic phase and near-zero repulsion in the deconfined phase.

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Metadaten
Author:Jan SteinheimerORCiDGND, Stefan SchrammGND
URN:urn:nbn:de:hebis:30:3-769888
DOI:https://doi.org/10.1016/j.physletb.2014.07.018
ISSN:0370-2693
Parent Title (English):Physics Letters B
Publisher:Elsevier
Place of publication:Amsterdam u.a.
Document Type:Article
Language:English
Date of Publication (online):2014/07/18
Date of first Publication:2014/07/18
Publishing Institution:Universit├Ątsbibliothek Johann Christian Senckenberg
Release Date:2023/10/06
Tag:Baryon number susceptibilities; QCD vector interaction strength
Volume:736
Page Number:5
First Page:241
Last Page:245
HeBIS-PPN:513578560
Institutes:Physik
Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universit├Ątspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 3.0