Open-boundary conditions in the deconfined phase
Abstract In this work, we consider open-boundary conditions at high temperatures, as they can potentially be of help to measure the topological susceptibility. In particular, we measure the extent of the boundary effects at $$T=1.5T_c$$ T=1.5Tc and $$T=2.7T_c$$ T=2.7Tc . In the first case, it is lar...
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Online Access: | https://doi.org/10.1140/epjc/s10052-019-7564-z |
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doaj-16ae774aa4404d6e972a45ae0abcdbbb2021-01-03T12:18:17ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522019-12-01791211110.1140/epjc/s10052-019-7564-zOpen-boundary conditions in the deconfined phaseAdrien Florio0Olaf Kaczmarek1Lukas Mazur2Laboratory of Particle Physics and Cosmology, Institute of Physics, Ecole Polytechnique Fédérale de LausanneKey Laboratory of Quark and Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal UniversityFakultät für Physik, Universität BielefeldAbstract In this work, we consider open-boundary conditions at high temperatures, as they can potentially be of help to measure the topological susceptibility. In particular, we measure the extent of the boundary effects at $$T=1.5T_c$$ T=1.5Tc and $$T=2.7T_c$$ T=2.7Tc . In the first case, it is larger than at $$T=0$$ T=0 while we find it to be smaller in the second case. The length of this “boundary zone” is controlled by the screening masses. We use this fact to measure the scalar and pseudo-scalar screening masses at these two temperatures. We observe a mass gap at $$T=1.5T_c$$ T=1.5Tc but not at $$T=2.7T_c$$ T=2.7Tc . Finally, we use our pseudo-scalar channel analysis to estimate the topological susceptibility. The results at $$T=1.5T_c$$ T=1.5Tc are in good agreement with the literature. At $$T=2.7T_c$$ T=2.7Tc , they appear to suffer from topological freezing, which prevents us from providing a precise determination of the topological susceptibility.https://doi.org/10.1140/epjc/s10052-019-7564-z |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Adrien Florio Olaf Kaczmarek Lukas Mazur |
spellingShingle |
Adrien Florio Olaf Kaczmarek Lukas Mazur Open-boundary conditions in the deconfined phase European Physical Journal C: Particles and Fields |
author_facet |
Adrien Florio Olaf Kaczmarek Lukas Mazur |
author_sort |
Adrien Florio |
title |
Open-boundary conditions in the deconfined phase |
title_short |
Open-boundary conditions in the deconfined phase |
title_full |
Open-boundary conditions in the deconfined phase |
title_fullStr |
Open-boundary conditions in the deconfined phase |
title_full_unstemmed |
Open-boundary conditions in the deconfined phase |
title_sort |
open-boundary conditions in the deconfined phase |
publisher |
SpringerOpen |
series |
European Physical Journal C: Particles and Fields |
issn |
1434-6044 1434-6052 |
publishDate |
2019-12-01 |
description |
Abstract In this work, we consider open-boundary conditions at high temperatures, as they can potentially be of help to measure the topological susceptibility. In particular, we measure the extent of the boundary effects at $$T=1.5T_c$$ T=1.5Tc and $$T=2.7T_c$$ T=2.7Tc . In the first case, it is larger than at $$T=0$$ T=0 while we find it to be smaller in the second case. The length of this “boundary zone” is controlled by the screening masses. We use this fact to measure the scalar and pseudo-scalar screening masses at these two temperatures. We observe a mass gap at $$T=1.5T_c$$ T=1.5Tc but not at $$T=2.7T_c$$ T=2.7Tc . Finally, we use our pseudo-scalar channel analysis to estimate the topological susceptibility. The results at $$T=1.5T_c$$ T=1.5Tc are in good agreement with the literature. At $$T=2.7T_c$$ T=2.7Tc , they appear to suffer from topological freezing, which prevents us from providing a precise determination of the topological susceptibility. |
url |
https://doi.org/10.1140/epjc/s10052-019-7564-z |
work_keys_str_mv |
AT adrienflorio openboundaryconditionsinthedeconfinedphase AT olafkaczmarek openboundaryconditionsinthedeconfinedphase AT lukasmazur openboundaryconditionsinthedeconfinedphase |
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