Renormalization of infrared contributions to the QCD pressure

Details Renormalization of infrared contributions to the QCD pressure Renormalization of infrared contributions to the QCD pressure

2006-09-26

arxiv.org/abs/hep-lat/0609048v1

PoSLAT2006:038,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 4 figures, talk presented at Lattice 2006 (High temperature and density)

Scientific paper

Thanks to dimensional reduction, the infrared contributions to the QCD pressure can be obtained from two different three-dimensional effective field theories, called the Electrostatic QCD (Yang-Mills plus adjoint Higgs) and the Magnetostatic QCD (pure Yang-Mills theory). Lattice measurements have been carried out within these theories, but a proper interpretation of the results requires renormalization, and in some cases also improvement, i.e. the removal of terms of O(a) or O(a^2). We discuss how these computations can be implemented and carried out up to 4-loop level with the help of Numerical Stochastic Perturbation Theory.

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