Hyperons in Thermal QCD from the Lattice

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

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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.

Original languageEnglish
Title of host publicationThe XVIII International Conference on Strangeness in Quark Matter (SQM 2019)
EditorsDomenico Elia, Giuseppe E. Bruno, Pietro Colangelo, Leonardo Cosmai
PublisherSpringer Science+Business Media
Publication date2020
Pages29-35
ISBN (Print)9783030534479
DOIs
Publication statusPublished - 2020
Event18th International Conference on Strangeness in Quark Matter, SQM 2019 - Bari, Italy
Duration: 10. Jun 201915. Jun 2019

Conference

Conference18th International Conference on Strangeness in Quark Matter, SQM 2019
CountryItaly
CityBari
Period10/06/201915/06/2019
SeriesSpringer Proceedings in Physics
Volume250
ISSN0930-8989

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