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Nucleons and parity doubling across the deconfinement transition

Gert Aarts Orcid Logo, Chris Allton Orcid Logo, Simon Hands, Benjamin Jäger, Chrisanthi Praki, Jon-Ivar Skullerud

Physical Review D, Volume: 92, Issue: 1

Swansea University Authors: Gert Aarts Orcid Logo, Chris Allton Orcid Logo, Simon Hands

DOI (Published version): 10.1103/PhysRevD.92.014503

Abstract

It is expected that nucleons and their parity partners become degenerate when chiral symmetry is restored. We investigate this question in the context of the thermal transition from the hadronic phase to the quark-gluon plasma, using lattice QCD simulations with N_f = 2 + 1 flavours. We observe a cl...

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Published in: Physical Review D
Published: 2015
URI: https://cronfa.swan.ac.uk/Record/cronfa22162
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spelling 2019-08-08T11:04:15.9708190 v2 22162 2015-06-25 Nucleons and parity doubling across the deconfinement transition 1ba0dad382dfe18348ec32fc65f3f3de 0000-0002-6038-3782 Gert Aarts Gert Aarts true false de706a260fa1e1e47430693e135f41c7 0000-0003-0795-124X Chris Allton Chris Allton true false b34293f7370adc1d2cac9b93717a61c7 Simon Hands Simon Hands true false 2015-06-25 SPH It is expected that nucleons and their parity partners become degenerate when chiral symmetry is restored. We investigate this question in the context of the thermal transition from the hadronic phase to the quark-gluon plasma, using lattice QCD simulations with N_f = 2 + 1 flavours. We observe a clear sign of parity doubling in the quark-gluon plasma. Besides, we find that the nucleon ground state is, within the uncertainty, largely independent of the temperature, whereas temperature effects are substantial in the negative-parity (N^∗) channel, already in the confined phase. Journal Article Physical Review D 92 1 9 7 2015 2015-07-09 10.1103/PhysRevD.92.014503 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2019-08-08T11:04:15.9708190 2015-06-25T08:18:09.6899200 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Gert Aarts 0000-0002-6038-3782 1 Chris Allton 0000-0003-0795-124X 2 Simon Hands 3 Benjamin Jäger 4 Chrisanthi Praki 5 Jon-Ivar Skullerud 6 0022162-26062015083221.pdf paper-nucleonv7.pdf 2015-06-26T08:32:21.5170000 Output 159537 application/pdf Version of Record true 2015-06-26T00:00:00.0000000 true
title Nucleons and parity doubling across the deconfinement transition
spellingShingle Nucleons and parity doubling across the deconfinement transition
Gert Aarts
Chris Allton
Simon Hands
title_short Nucleons and parity doubling across the deconfinement transition
title_full Nucleons and parity doubling across the deconfinement transition
title_fullStr Nucleons and parity doubling across the deconfinement transition
title_full_unstemmed Nucleons and parity doubling across the deconfinement transition
title_sort Nucleons and parity doubling across the deconfinement transition
author_id_str_mv 1ba0dad382dfe18348ec32fc65f3f3de
de706a260fa1e1e47430693e135f41c7
b34293f7370adc1d2cac9b93717a61c7
author_id_fullname_str_mv 1ba0dad382dfe18348ec32fc65f3f3de_***_Gert Aarts
de706a260fa1e1e47430693e135f41c7_***_Chris Allton
b34293f7370adc1d2cac9b93717a61c7_***_Simon Hands
author Gert Aarts
Chris Allton
Simon Hands
author2 Gert Aarts
Chris Allton
Simon Hands
Benjamin Jäger
Chrisanthi Praki
Jon-Ivar Skullerud
format Journal article
container_title Physical Review D
container_volume 92
container_issue 1
publishDate 2015
institution Swansea University
doi_str_mv 10.1103/PhysRevD.92.014503
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 It is expected that nucleons and their parity partners become degenerate when chiral symmetry is restored. We investigate this question in the context of the thermal transition from the hadronic phase to the quark-gluon plasma, using lattice QCD simulations with N_f = 2 + 1 flavours. We observe a clear sign of parity doubling in the quark-gluon plasma. Besides, we find that the nucleon ground state is, within the uncertainty, largely independent of the temperature, whereas temperature effects are substantial in the negative-parity (N^∗) channel, already in the confined phase.
published_date 2015-07-09T03:26:22Z
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score 11.013171

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