Probing parity doubling in nucleons at high temperature

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

Research output: Contribution to journalConference articleResearchpeer-review

6 Downloads (Pure)

Abstract

The spectrum of nucleons and their parity partners is studied as a function of temperature spanning the deconfinement transition. We analyse our results using the correlation functions directly, exponential fits in the hadronic phase, and the Maximum Entropy Method. These techniques all indicate that there is degeneracy in the parity partners' channels in the deconfined phase. This is in accordance with the expectation that there is parity doubling and chiral symmetry in the deconfined phase. In the hadronic phase, we also find that the nucleon ground state is largely independent of temperature, whereas there are substantial temperature effects in the negative parity channel. All results are obtained using our FASTSUM 2+1 flavour ensembles.
Original languageEnglish
JournalP o S - Proceedings of Science
ISSN1824-8039
Publication statusPublished - 14. Oct 2015

Fingerprint

nucleons
parity
maximum entropy method
temperature effects
ground state
temperature
symmetry

Keywords

  • hep-lat

Cite this

Aarts, G., Allton, C., Hands, S., Jäger, B., Praki, C., & Skullerud, J-I. (2015). Probing parity doubling in nucleons at high temperature. P o S - Proceedings of Science.
Aarts, Gert ; Allton, Chris ; Hands, Simon ; Jäger, Benjamin ; Praki, Chrisanthi ; Skullerud, Jon-Ivar. / Probing parity doubling in nucleons at high temperature. In: P o S - Proceedings of Science. 2015.
@inproceedings{f7975f10af83414ba01b2e360b2d727e,
title = "Probing parity doubling in nucleons at high temperature",
abstract = "The spectrum of nucleons and their parity partners is studied as a function of temperature spanning the deconfinement transition. We analyse our results using the correlation functions directly, exponential fits in the hadronic phase, and the Maximum Entropy Method. These techniques all indicate that there is degeneracy in the parity partners' channels in the deconfined phase. This is in accordance with the expectation that there is parity doubling and chiral symmetry in the deconfined phase. In the hadronic phase, we also find that the nucleon ground state is largely independent of temperature, whereas there are substantial temperature effects in the negative parity channel. All results are obtained using our FASTSUM 2+1 flavour ensembles.",
keywords = "hep-lat",
author = "Gert Aarts and Chris Allton and Simon Hands and Benjamin J{\"a}ger and Chrisanthi Praki and Jon-Ivar Skullerud",
note = "Proceedings of the 33rd International Symposium on Lattice Field Theory, Kobe, Japan, 14-18 July 2015",
year = "2015",
month = "10",
day = "14",
language = "English",
journal = "P o S - Proceedings of Science",
issn = "1824-8039",
publisher = "SISSA",

}

Aarts, G, Allton, C, Hands, S, Jäger, B, Praki, C & Skullerud, J-I 2015, 'Probing parity doubling in nucleons at high temperature', P o S - Proceedings of Science.

Probing parity doubling in nucleons at high temperature. / Aarts, Gert; Allton, Chris; Hands, Simon; Jäger, Benjamin; Praki, Chrisanthi; Skullerud, Jon-Ivar.

In: P o S - Proceedings of Science, 14.10.2015.

Research output: Contribution to journalConference articleResearchpeer-review

TY - GEN

T1 - Probing parity doubling in nucleons at high temperature

AU - Aarts, Gert

AU - Allton, Chris

AU - Hands, Simon

AU - Jäger, Benjamin

AU - Praki, Chrisanthi

AU - Skullerud, Jon-Ivar

N1 - Proceedings of the 33rd International Symposium on Lattice Field Theory, Kobe, Japan, 14-18 July 2015

PY - 2015/10/14

Y1 - 2015/10/14

N2 - The spectrum of nucleons and their parity partners is studied as a function of temperature spanning the deconfinement transition. We analyse our results using the correlation functions directly, exponential fits in the hadronic phase, and the Maximum Entropy Method. These techniques all indicate that there is degeneracy in the parity partners' channels in the deconfined phase. This is in accordance with the expectation that there is parity doubling and chiral symmetry in the deconfined phase. In the hadronic phase, we also find that the nucleon ground state is largely independent of temperature, whereas there are substantial temperature effects in the negative parity channel. All results are obtained using our FASTSUM 2+1 flavour ensembles.

AB - The spectrum of nucleons and their parity partners is studied as a function of temperature spanning the deconfinement transition. We analyse our results using the correlation functions directly, exponential fits in the hadronic phase, and the Maximum Entropy Method. These techniques all indicate that there is degeneracy in the parity partners' channels in the deconfined phase. This is in accordance with the expectation that there is parity doubling and chiral symmetry in the deconfined phase. In the hadronic phase, we also find that the nucleon ground state is largely independent of temperature, whereas there are substantial temperature effects in the negative parity channel. All results are obtained using our FASTSUM 2+1 flavour ensembles.

KW - hep-lat

M3 - Conference article

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

SN - 1824-8039

ER -

Aarts G, Allton C, Hands S, Jäger B, Praki C, Skullerud J-I. Probing parity doubling in nucleons at high temperature. P o S - Proceedings of Science. 2015 Oct 14.