Hyperons in Thermal QCD from the Lattice

Gert Aarts, Chris Allton*, Davide de Boni, Jonas Glesaaen, Simon Hands, Benjamin Jäger, Jon Ivar Skullerud

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Abstract

We study the spectrum of light baryons and hyperons as a function of temperature using lattice gauge theory methods. We find that masses of positive parity states are temperature independent, within errors, in the hadronic phase. The negative parity states decrease in mass as the temperature increases. Above the deconfining temperature, lattice correlators and spectral functions show a degeneracy between parity sectors, i.e. parity doubling. We apply our findings to an in-medium Hadron Resonance Gas model. The techniques used in this study include direct analysis of the hadronic correlation functions, conventional fitting procedures, and the Maximum Entropy Method.

OriginalsprogEngelsk
TitelThe XVIII International Conference on Strangeness in Quark Matter (SQM 2019)
RedaktørerDomenico Elia, Giuseppe E. Bruno, Pietro Colangelo, Leonardo Cosmai
ForlagSpringer Science+Business Media
Publikationsdato2020
Sider29-35
ISBN (Trykt)9783030534479
DOI
StatusUdgivet - 2020
Begivenhed18th International Conference on Strangeness in Quark Matter, SQM 2019 - Bari, Italien
Varighed: 10. jun. 201915. jun. 2019

Konference

Konference18th International Conference on Strangeness in Quark Matter, SQM 2019
Land/OmrådeItalien
ByBari
Periode10/06/201915/06/2019
NavnSpringer Proceedings in Physics
Vol/bind250
ISSN0930-8989

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