Symmetry restoration at high-temperature in two-color and two-flavor lattice gauge theories

Abstract

We consider the $SU(2)$ gauge theory with $N_f=2$ flavors of Dirac fundamental fermions. We study the high-temperature behavior of the spectra of mesons, discretizing the theory on anisotropic lattices, and measuring the two-point correlation functions in the temporal direction as well as screening masses in various channels. We identify the (pseudo-)critical temperature as the temperature at which the susceptibility associated with the Polyakov loop has a maximum. At high temperature both the spin-1 and spin-0 sectors of the light meson spectra exhibit enhanced symmetry properties, indicating the restoration of both the global $SU(4)$ and the axial $U(1{)}_A$ symmetries of the model.

38 pages, 14 figures, 6 tables, Version accepted for publication

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Cited by in corpus (15)

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• Flavor Physics and Flavor Anomalies in Minimal Fundamental Partial Compositeness
• Sp(4) gauge theories on the lattice: $N_f=2$ dynamical fundamental fermions
• Sp(4) gauge theories on the lattice: Quenched fundamental and antisymmetric fermions
• A Near-Conformal Composite Higgs Model
• Lattice studies of the $Sp(4)$ gauge theory with two fundamental and three antisymmetric Dirac fermions
• Chiral and $U(1{)}_A$ restoration for the scalar/pseudoscalar meson nonets
• Glueballs and Strings in $Sp(2N)$ Yang-Mills theories
• Low-energy effective description of dark $Sp(4)$ theories
• Dense two-color QCD from Dyson-Schwinger equations
• $Sp(2N)$ Yang-Mills theories on the lattice: scale setting and topology
• Towards top-down holographic composite Higgs: minimal coset from maximal supergravity
• Toward minimal composite Higgs models from regular geometries in bottom-up holography
• Higgs compositeness in Sp(2N) gauge theories - Determining the low-energy constants with lattice calculations
• On the low-energy spectrum of an SU(2) gauge theory with dynamical fermions