000227694 001__ 227694
000227694 005__ 20181203024644.0
000227694 0247_ $$2doi$$a10.1103/PhysRevD.95.054511
000227694 022__ $$a2470-0010
000227694 02470 $$2ISI$$a000399145200003
000227694 037__ $$aARTICLE
000227694 245__ $$aComplex heavy-quark potential and Debye mass in a gluonic medium from lattice QCD
000227694 260__ $$bAmer Physical Soc$$c2017$$aCollege Pk
000227694 269__ $$a2017
000227694 300__ $$a13
000227694 336__ $$aJournal Articles
000227694 520__ $$aWe improve and extend our study of the complex in-medium heavy-quark potential and its Debye mass m(D) in a gluonic medium with a finer scan around the deconfinement transition and newly generated ensembles closer to the thermodynamic limit. On the lattices with larger physical volume, Re [V] shows signs of screening, i.e. a finite m(D), only in the deconfined phase, reminiscent of a genuine phase transition. Consistently Im[V] exhibits nonzero values also only above T-C. We compare the behavior of Re [V] with the color singlet free energies that have been used historically to extract the Debye mass. An effective coupling constant is computed to assess the residual influence of the confining part of the potential at T > 0. Our previous finding of a gradual screening of Re [V] around T-C on finer lattices is critically reassessed and interpreted to originate from finite volume artifacts. We discuss that deficiency of the beta = 7, xi(b) = 3.5 parameter set at N-s = 32, which has been in deployed in the literature before.
000227694 700__ $$0243895$$g114402$$uEcole Polytech Fed Lausanne, Inst Theoret Phys, Lausanne, Switzerland$$aBurnier, Yannis
000227694 700__ $$aRothkopf, Alexander
000227694 773__ $$j95$$tPhysical Review D$$k5$$q054511
000227694 909C0 $$xU10869$$0252301$$pLPPC
000227694 909CO $$pSB$$particle$$ooai:infoscience.tind.io:227694
000227694 917Z8 $$x126010
000227694 937__ $$aEPFL-ARTICLE-227694
000227694 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000227694 980__ $$aARTICLE