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Baryons in the plasma: In-medium effects and parity doubling

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

EPJ Web of Conferences, Volume: 171, Start page: 14005

Swansea University Author: Gert Aarts Orcid Logo

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DOI (Published version): 10.1051/epjconf/201817114005

Abstract

We investigate the fate of baryons made out of u, d and s quarks in the hadronic gas and the quark-gluon plasma, using nonperturbative lattice simulations, employing the FASTSUM anisotropic Nf=2+1 ensembles. In the confined phase a strong temperature dependence is seen in the masses of the negative-...

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Published in: EPJ Web of Conferences
ISSN: 2100-014X
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa37976
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spelling 2018-03-05T14:58:15.9361391 v2 37976 2018-01-10 Baryons in the plasma: In-medium effects and parity doubling 1ba0dad382dfe18348ec32fc65f3f3de 0000-0002-6038-3782 Gert Aarts Gert Aarts true false 2018-01-10 SPH We investigate the fate of baryons made out of u, d and s quarks in the hadronic gas and the quark-gluon plasma, using nonperturbative lattice simulations, employing the FASTSUM anisotropic Nf=2+1 ensembles. In the confined phase a strong temperature dependence is seen in the masses of the negative-parity groundstates, while the positive-parity groundstate masses are approximately temperature independent, within the error. At high temperature parity doubling emerges. A noticeable effect of the heavier s quark is seen. We give a simple description of the medium-dependent masses for the negative-parity states and speculate on the relevance for heavy-ion phenomenology via the hadron resonance gas. Journal Article EPJ Web of Conferences 171 14005 2100-014X 31 12 2018 2018-12-31 10.1051/epjconf/201817114005 https://arxiv.org/abs/1710.00566 COLLEGE NANME Physics COLLEGE CODE SPH Swansea University 2018-03-05T14:58:15.9361391 2018-01-10T11:00:55.2141066 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Physics Gert Aarts 0000-0002-6038-3782 1 Chris Allton 2 Davide de Boni 3 Simon Hands 4 Benjamin Jäger 5 Chrisanthi Praki 6 Jon-Ivar Skullerud 7 0037976-07022018092410.pdf epjconf_sqm2018_14005.pdf 2018-02-07T09:24:10.9830000 Output 247271 application/pdf Accepted Manuscript true 2018-02-07T00:00:00.0000000 true eng 0037976-01032018094201.pdf 37976.pdf 2018-03-01T09:42:01.6270000 Output 247271 application/pdf Version of Record true 2018-03-01T00:00:00.0000000 This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0. true eng 0037976-10012018110138.pdf 1710.00566-1.pdf 2018-01-10T11:01:38.0670000 Output 147365 application/pdf Author's Original true 2018-01-10T00:00:00.0000000 true eng
title Baryons in the plasma: In-medium effects and parity doubling
spellingShingle Baryons in the plasma: In-medium effects and parity doubling
Gert Aarts
title_short Baryons in the plasma: In-medium effects and parity doubling
title_full Baryons in the plasma: In-medium effects and parity doubling
title_fullStr Baryons in the plasma: In-medium effects and parity doubling
title_full_unstemmed Baryons in the plasma: In-medium effects and parity doubling
title_sort Baryons in the plasma: In-medium effects and parity doubling
author_id_str_mv 1ba0dad382dfe18348ec32fc65f3f3de
author_id_fullname_str_mv 1ba0dad382dfe18348ec32fc65f3f3de_***_Gert Aarts
author Gert Aarts
author2 Gert Aarts
Chris Allton
Davide de Boni
Simon Hands
Benjamin Jäger
Chrisanthi Praki
Jon-Ivar Skullerud
format Journal article
container_title EPJ Web of Conferences
container_volume 171
container_start_page 14005
publishDate 2018
institution Swansea University
issn 2100-014X
doi_str_mv 10.1051/epjconf/201817114005
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
url https://arxiv.org/abs/1710.00566
document_store_str 1
active_str 0
description We investigate the fate of baryons made out of u, d and s quarks in the hadronic gas and the quark-gluon plasma, using nonperturbative lattice simulations, employing the FASTSUM anisotropic Nf=2+1 ensembles. In the confined phase a strong temperature dependence is seen in the masses of the negative-parity groundstates, while the positive-parity groundstate masses are approximately temperature independent, within the error. At high temperature parity doubling emerges. A noticeable effect of the heavier s quark is seen. We give a simple description of the medium-dependent masses for the negative-parity states and speculate on the relevance for heavy-ion phenomenology via the hadron resonance gas.
published_date 2018-12-31T03:47:56Z
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score 11.013686

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