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Parity doubling in two-flavor SU(2) at high temperature

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

Pos(Lattice2016)080

Swansea University Author: Maurizio Piai Orcid Logo

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Abstract

We study the mass spectrum of mesons at high temperature in SU(2) gauge theory with two flavorsof Dirac fundamental fermions. Numerical simulations are carried out on anisotropic latticesusing Wilson fermions, with lattice parameters tuned so that Euclidean symmetry is restored atlow energy. We dete...

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Published in: Pos(Lattice2016)080
ISSN: 1824-8039
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa32042
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first_indexed 2017-02-22T19:38:18Z
last_indexed 2018-02-09T05:19:33Z
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spelling 2017-03-20T10:50:19.4673721 v2 32042 2017-02-22 Parity doubling in two-flavor SU(2) at high temperature 3ce295f2c7cc318bac7da18f9989d8c3 0000-0002-2251-0111 Maurizio Piai Maurizio Piai true false 2017-02-22 SPH We study the mass spectrum of mesons at high temperature in SU(2) gauge theory with two flavorsof Dirac fundamental fermions. Numerical simulations are carried out on anisotropic latticesusing Wilson fermions, with lattice parameters tuned so that Euclidean symmetry is restored atlow energy. We determine the pseudo-critical temperature Tc using renormalized Polyakov loops.We calculate temporal and spatial meson correlation functions across Tc, and observe a clear signof parity doublings above Tc in both vector and scalar channels. The degeneracy between paritypartners in the spectrum indicates that the enhanced SU(4)U(1)A global symmetry of the modelis restored at high temperature. Conference Paper/Proceeding/Abstract Pos(Lattice2016)080 1824-8039 30 1 2017 2017-01-30 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2017-03-20T10:50:19.4673721 2017-02-22T15:58:04.3253590 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Jong-Wan Lee 1 Biagio Lucini 2 Maurizio Piai 0000-0002-2251-0111 3 0032042-02032017094942.pdf 1702.07640.pdf 2017-03-02T09:49:42.3800000 Output 699215 application/pdf Accepted Manuscript true 2017-01-30T00:00:00.0000000 Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0). true eng
title Parity doubling in two-flavor SU(2) at high temperature
spellingShingle Parity doubling in two-flavor SU(2) at high temperature
Maurizio Piai
title_short Parity doubling in two-flavor SU(2) at high temperature
title_full Parity doubling in two-flavor SU(2) at high temperature
title_fullStr Parity doubling in two-flavor SU(2) at high temperature
title_full_unstemmed Parity doubling in two-flavor SU(2) at high temperature
title_sort Parity doubling in two-flavor SU(2) at high temperature
author_id_str_mv 3ce295f2c7cc318bac7da18f9989d8c3
author_id_fullname_str_mv 3ce295f2c7cc318bac7da18f9989d8c3_***_Maurizio Piai
author Maurizio Piai
author2 Jong-Wan Lee
Biagio Lucini
Maurizio Piai
format Conference Paper/Proceeding/Abstract
container_title Pos(Lattice2016)080
publishDate 2017
institution Swansea University
issn 1824-8039
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Physics{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Physics
document_store_str 1
active_str 0
description We study the mass spectrum of mesons at high temperature in SU(2) gauge theory with two flavorsof Dirac fundamental fermions. Numerical simulations are carried out on anisotropic latticesusing Wilson fermions, with lattice parameters tuned so that Euclidean symmetry is restored atlow energy. We determine the pseudo-critical temperature Tc using renormalized Polyakov loops.We calculate temporal and spatial meson correlation functions across Tc, and observe a clear signof parity doublings above Tc in both vector and scalar channels. The degeneracy between paritypartners in the spectrum indicates that the enhanced SU(4)U(1)A global symmetry of the modelis restored at high temperature.
published_date 2017-01-30T03:39:12Z
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score 11.016235

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