DISCRETE 2014: Fourth Symposium on Prospects in the Physics of Discrete Symmetries

Session

Parallel 5: Strongly coupled gauge theories

3 Dec 2014, 16:35

Great Hall and several lecture theatres (King's College London, Strand Campus)

90. A 3d effective lattice theory for Yang-Mills and QCD thermodynamics

Owe Philipsen (Goethe-University Frankfurt)

03/12/2014, 16:35

QCD thermodynamics is crucial for the physics of the early universe, heavy ion collisions and compact stars. However, predictions by lattice simulations are very costly or, in the case of finite baryon density, even impossible because of a sign problem. Starting from Yang-Mills theory, it is shown how to use strong coupling methods to construct a 3d effective theory which accurately...

13. Variationl Study of SU(3) Gauge Theory by Stationary Variance

Fabio Siringo (Università degli Studi di Catania)

03/12/2014, 17:10

> The principle of stationary variance is advocated as a viable variational approach to gauge theories where the simple Gaussian Effective Potential (GEP) is known to be useless. The method can be regarded as a second-order extension of the GEP and seems to be suited for describing the strong coupling limit of non-Abelian gauge theories. The single variational parameter of the GEP is...

92. DSE-isnpired model for the Pion GPD

José Rodriguez Quintero (University of Huelva)

03/12/2014, 17:45

We sketch an approach to a computation of the pion's valence dressed-quark GPD based upon a Rainbow-Ladder truncation of the QCD Dyson-Schwinger equations. In particular, our starting point is the appropriate recasting of the computed GPD as the well-known double distribution ansatz, which automatically fulfils all the constraints required by the observing of discrete and Lorentz symmetries.