Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2008-12-08
Phys.Rev.D79:034501,2009
Physics
High Energy Physics
High Energy Physics - Lattice
12 pages, 11 figures
Scientific paper
10.1103/PhysRevD.79.034501
We have performed numerical simulations of SU(3) gauge theory coupled to Nf=2 flavors of symmetric representation fermions. The fermions are discretized with the tadpole-improved clover action. Our simulations are done on lattices of length L=6, 8, and 12. In all simulation volumes we observe a crossover from a strongly coupled confined phase to a weak coupling deconfined phase. Degeneracies in screening masses, plus the behavior of the pseudoscalar decay constant, indicate that the deconfined phase is also a phase in which chiral symmetry is restored. The movement of the confinement transition as the volume is changed is consistent with avoidance of the basin of attraction of an infrared fixed point of the massless theory.
DeGrand Thomas
Shamir Yigal
Svetitsky Benjamin
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