Probing deconfinement with Polyakov loop susceptibilities
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 Z_{3} symmetry of the YangMills Lagrangian and the general properties of the Polyakov loop probability distribution.
 Publication:

Physical Review D
 Pub Date:
 July 2013
 DOI:
 10.1103/PhysRevD.88.014506
 arXiv:
 arXiv:1306.5094
 Bibcode:
 2013PhRvD..88a4506L
 Keywords:

 25.75.Nq;
 11.15.Ha;
 24.60.k;
 05.70.Jk;
 Quark deconfinement quarkgluon plasma production and phase transitions;
 Lattice gauge theory;
 Statistical theory and fluctuations;
 Critical point phenomena;
 High Energy Physics  Lattice;
 High Energy Physics  Phenomenology
 EPrint:
 4 pages, 3 figures, accepted for publication in Physical Review D