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Baryons in the plasma: In-medium effects and parity doubling / Gert Aarts; 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: Aarts, Gert

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
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa37976
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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-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.
College: College of Science
Start Page: 14005