Lattice2010

Session

Parallel 06: Vacuum structure and confiment

14 Jun 2010, 16:40

Villasimius, Sardinia

298. Further investigation of massive Landau-gauge propagators in the infrared limit

Tereza Mendes (University of Sao Paulo)

14/06/2010, 16:40

Vacuum structure and confinement

We study the infrared limit of Landau gluon and ghost propagators on large lattices and investigate how the behavior according to the so-called massive solution is affected by temperature.

138. Colour fields generated by static sources of different SU(3) representations.

Bicudo Pedro (Instituto Superior Técnico, Lisboa)

14/06/2010, 17:00

Vacuum structure and confinement

The colour fields, created by static sources belonging to different SU(3) representations, from the 3 to the 27, are computed in quenched SU(3) lattice QCD, in a $24^3\times 48$ lattice at $\beta=6.2$ and $a=0.07261(85)\,fm$. We utilize the technique of generalized Wilson Loops to localize the sources, correlated with plaquettes to measure the respective colour fields. We investigate...

18. Propagators in lattice Coulomb gauge and confinement mechanisms

Giuseppe Burgio (Universität Tübingen)

14/06/2010, 17:20

Vacuum structure and confinement

We review the status of lattice simulations for propagators in Coulomb gauge. In particular, we focus on renormalization issues for the static propagators and on the relation to the Gribov-Zwanziger and dual-superconductor confinement mechanisms. We also show how a vanishing static Coulomb gauge gluon propagator can agree with the lattice Landau gauge results; the IR effective gluon mass in...

61. Hamiltonian Flow in Coulomb Gauge Yang-Mills theory

Hugo Reinhardt (Tübingen University)

14/06/2010, 17:40

Vacuum structure and confinement

We derive a new Hamiltonian renormalisation group flow equation for Yang-Mills theory in Coulomb gauge. The flow equations for the static gluon and ghost propagators are solved numerically under the assumption of a bare ghost gluon vertex. The resulting propagators are compared with lattice data and results obtained from the Dyson-Schwinger equations following from a variational solution of...

55. New results on the effective string corrections to the interquark potential.

Michele Caselle (TO)

14/06/2010, 18:00

Vacuum structure and confinement

We propose a new approach to the study of the interquark poten- tial in LGTs. Instead of looking at the expectation value of Polyakov loop correlators we study the modifications induced in the chromoelectric flux due to the presence of the Polyakov loops. This approach is particularly effective in the case of abelian LGTs where, with a careful use of duality relations this study can be...