Polyakov loop fluctuations in the presence of external fields

Lo, Pok Man (Institute of Theoretical Physics, University of Wroclaw, PL-50204 Wrocław, Poland) (Extreme Matter Institute EMMI, GSI, Planckstr. 1, D-64291 Darmstadt, Germany) ; Szymański, Michał (Institute of Theoretical Physics, University of Wroclaw, PL-50204 Wrocław, Poland) ; Redlich, Krzysztof (Institute of Theoretical Physics, University of Wroclaw, PL-50204 Wrocław, Poland) (Extreme Matter Institute EMMI, GSI, Planckstr. 1, D-64291 Darmstadt, Germany) ; Sasaki, Chihiro (Institute of Theoretical Physics, University of Wroclaw, PL-50204 Wrocław, Poland)

07 June 2018

Abstract: We study the implications of the spontaneous and explicit Z(3) center symmetry breaking for the Polyakov loop susceptibilities. To this end, ratios of the susceptibilities of the real and imaginary parts, as well as of the modulus of the Polyakov loop are computed within an effective model using a color group integration scheme. We show that the essential features of the lattice QCD results of these ratios can be successfully captured by the effective approach. Furthermore we discuss a novel scaling relation in one of these ratios involving the explicit breaking field, volume, and temperature.


Published in: Physical Review D 97 (2018)
Published by: APS
DOI: 10.1103/PhysRevD.97.114006
arXiv: 1801.08040
License: CC-BY-4.0



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