Probing deconfinement with Polyakov loop susceptibilities

Pok Man Lo, Bengt Friman, Olaf Kaczmarek, Krzysztof Redlich, and Chihiro Sasaki
Phys. Rev. D 88, 014506 – Published 9 July 2013

Abstract

The susceptibilities of the real and imaginary parts, as well as of the modulus, of the Polyakov loop, are computed in SU(3) lattice gauge theory. We show that the ratios of these susceptibilities are excellent probes of the deconfinement transition, independent of the renormalization of the Polyakov loop and only weakly dependent on the system size. The ratios are almost temperature independent above and below the transition and exhibit a discontinuity at the transition temperature. This characteristic behavior can be understood in terms of the global Z3 symmetry of the Yang-Mills Lagrangian and the general properties of the Polyakov loop probability distribution.

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  • Received 10 May 2013

DOI:https://doi.org/10.1103/PhysRevD.88.014506

© 2013 American Physical Society

Authors & Affiliations

Pok Man Lo1, Bengt Friman1, Olaf Kaczmarek2, Krzysztof Redlich3,4, and Chihiro Sasaki5

  • 1GSI, Helmholzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany
  • 2Fakultät für Physik, Universität Bielefeld, 33615 Bielefeld, Germany
  • 3Institute of Theoretical Physics, University of Wroclaw, PL-50204 Wrocław, Poland
  • 4Extreme Matter Institute EMMI, GSI, Planckstrasse 1, D-64291 Darmstadt, Germany
  • 5Frankfurt Institute for Advanced Studies, D-60438 Frankfurt am Main, Germany

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Vol. 88, Iss. 1 — 1 July 2013

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