The Phase Diagram of 2 flavour QCD with improved Actions

Details The Phase Diagram of 2 flavour QCD with improved Actions The Phase Diagram of 2 flavour QCD with improved Actions

1999-05-07

arxiv.org/abs/hep-lat/9905011v1

Physics

High Energy Physics

High Energy Physics - Lattice

Talk given at Conference on Strong and Electroweak Matter (SEWM 98), Copenhagen, Denmark, 2-5 Dec 1998

Scientific paper

It has been proposed, that the chiral continuum limit of 2-flavour QCD with Wilson fermions is brought about by a phase in which flavour and parity symmetry are broken spontaneously at finite lattice spacing. At finite temperature this phase should retract from the weak coupling limit to form 5 cusps. This scenario is studied with tree level Symanzik improved actions for both gauge and fermion fields on lattices of size $8^3\times 4$ and $12^2\times 24\times 4$.

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