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

Jong-Wan Lee, Biagio Lucini Orcid Logo, Maurizio Piai Orcid Logo

Journal of High Energy Physics, Volume: 2017, Issue: 4

Swansea University Authors: Biagio Lucini Orcid Logo, Maurizio Piai Orcid Logo

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Abstract

We consider the SU(2) gauge theory with Nf=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 masse...

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Published in: Journal of High Energy Physics
ISSN: 1029-8479
Published: Springer Science and Business Media LLC 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa32737
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Abstract: We consider the SU(2) gauge theory with Nf=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.
College: Faculty of Science and Engineering
Issue: 4