Bulk and finite-temperature transitions in SU(3) gauge theories with many light fermions

Abstract

We investigate finite-temperature transitions in SU(3) lattice gauge theories with Nf=8 and 12 staggered fermions in the fundamental representation. For both of these systems, we have observed a strongly-coupled lattice phase in which the single-site shift symmetry of the staggered action is spontaneously broken. Here we report new results for finite-temperature transitions on 24^3x12 and 32^3x16 lattice volumes, contrasting the 8- and 12-flavor systems. While the Nf=12 finite-temperature transitions accumulate at the bulk transition bounding the strongly-coupled lattice phase, the Nf=8 finite-temperature transitions are able to pass through the bulk transition, and behave as expected for a QCD-like system. We discuss our current results and the work in progress to complete our investigation of the finite-temperature phase diagram.

Contribution to the proceedings of Lattice 2012, June 24-29, Cairns, Australia. 7 pages

References in corpus (2)

• Mass anomalous dimension from Dirac eigenmode scaling in conformal and confining systems
• MCRG study of 8 and 12 fundamental flavors

Cited by in corpus (9)

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• Improving the continuum limit of gradient flow step scaling
• The bulk transition of QCD with twelve flavors and the role of improvement
• Stealth dark matter confinement transition and gravitational waves
• Axial anomaly and the triality symmetry of octonion
• Reaching the chiral limit in many flavor systems