Phase structure of SU(3) gauge theory with two flavors of symmetric-representation fermions

Abstract

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.

12 pages, 11 figures

References in corpus (3)

• Unparticle Physics
• Zero of the discrete beta function in SU(3) lattice gauge theory with color sextet fermions
• The physics of eight flavours

Cited by in corpus (32)

• Nearly conformal gauge theories in finite volume
• Higher-Loop Corrections to the Infrared Evolution of a Gauge Theory with Fermions
• The infrared dynamics of Minimal Walking Technicolor
• Conformality or confinement: (IR)relevance of topological excitations
• Conformal Window of Gauge Theories with Four-Fermion Interactions and Ideal Walking
• Phase diagrams of SU(N) gauge theories with fermions in various representations
• A Very Light Dilaton
• Mass anomalous dimension in SU(2) with six fundamental fermions
• Comments on lattice gauge theories with infrared-attractive fixed points
• Running coupling constant of ten-flavor QCD with the Schrödinger functional method
• Meson-meson Scattering in QCD-like Theories
• Conformal Behavior at Four Loops and Scheme (In)Dependence
• Topology and higher dimensional representations
• Lattice study of infrared behaviour in SU(3) gauge theory with twelve massless flavours
• Finite Volume Phases of Large N Gauge Theories with Massive Adjoint Fermions
• Improvement via hypercubic smearing in triplet and sextet QCD
• QCD Dual
• Flavor Dependence of the S-parameter
• A linear sigma model for multiflavor gauge theories
• Chiral symmetry breaking and confinement: separating the scales
• QCD-like technicolor on the lattice
• The SU(3) Sextet Model with Wilson Fermions
• Phase Diagrams of Strongly Interacting Theories
• Technicolor and Beyond: Unification in Theory Space
• Spectrum of SU(2) gauge theory at large number of flavors
• Discrete symmetry breaking and baryon currents in U(N) and SU(N) gauge theories
• Thermodynamics of lattice QCD with 3 flavours of colour-sextet quarks II: N_t=6 and N_t=8
• QCD with colour-sextet quarks
• Conformal or confining -- results from lattice gauge theory for higher-representation gauge theories
• Topcolor-like dynamics and new matter generations
• Models of Walking Technicolor on the Lattice
• Aspects of Gauge-Gravity Duality