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HIC for FAIR logo Nuclear Physics Colloquium

Venue: Physics Building, Max-von-Laue-Str. 1, Seminar Room PHYS 2.116
Time: Thursday, January 26, 4:30 pm (s.t.)
Contact: hees@fias.uni-frankfurt.de


Color screening in a hot quark-gluon-plasma

Johannes Weber (TU Munich)

Color screening in a hot quark-gluon-plasma is the origin of deconfinement in the high temperature phase of strongly interacting matter. After a brief review of QCD at high temperature, I discuss color screening in lattice QCD simulations of the Polyakov loop and of Polyakov loop correlators with 2+1 flavors and almost physical quark masses.

I elucidate how the Polyakov loop and related observables behave in the crossover region and how these observables provide a well-controlled probe the deconfinement aspects of the crossover.

I examine Polyakov loop correlators, extract screening masses and discuss the onset of weak-coupling behavior at high temperatures and short distances.


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