University of Minnesota
School of Physics & Astronomy

Physics and Astronomy Calendar

Monday, October 16th 2017
1:25 pm:
Speaker:  Jens Andersen, Norwegian University of Science and Technology
Subject: QCD thermodynamics. Hard-thermal-loop perturbation theory vs lattice
Note change of time and day for the seminar, this week only

The perturbative series for finite-temperature field theories has very poor convergence properties and one needs a way to reorganize it. In this talk, I review one way of reorganizing the perturbative series thermal QCD, namely hard-thermal-loop perturbation theory (HTLpt). I will present results for the pressure, trace anomaly, speed of sound and the quark susceptibilities from a 3-loop HTLpt calculation. A careful comparison with available lattice data shows good agreement for a number of physical quantities.

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