"Renormalization of infrared contributions to the QCD pressure"
Relatore: Dr Christian Torrero- UniversitÓ di Bielefeld (D)
09 Novembre 2006 ore 15.30
|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.