Contribution to a conference proceedings/Journal Article

FZJ-2026-03098

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Equation of state of a hot-and-dense quark gluon plasma: Lattice simulations at real $μ_B$ vs. extrapolations

Borsányi, S. ; Fodor, Z.FZJ* ; Giordano, M. ; Guenther, J. N. ; Katz, S. D. ; Pásztor, A. ; Wong, C. H.

2024
EDP Sciences Les Ulis

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Please use a persistent id in citations: doi:10.1051/epjconf/202429614003  doi:10.34734/FZJ-2026-03098

Abstract: The equation of state of the quark gluon plasma is a key ingredient of heavy ion phenomenology. In addition to the traditional Taylor method, several novel approximation schemes have been proposed with the aim of calculating it at finite baryon density. In order to gain a pragmatic understanding of the limits of these schemes, we compare them to direct results at $μ_B > 0$, using reweighting techniques free from an overlap problem. We use 2stout improved staggered fermions with 8 time-slices and cover the entire RHIC BES range in the baryochemical potential, up to $μ_B/T = 3$. This work is based on Ref. [1].

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
2. 05P21PXFCA - Verbundprojekt 05P2021 (ErUM-FSP T06) - Aufbau von CBM bei FAIR: Compressed-Baryonic-Matter-Physik an FAIR: Gittersimulationen zur starken Wechselwirkung mit endlicher Baryonendichte (BMBF-05P21PXFCA) (BMBF-05P21PXFCA)
3. DFG project G:(GEPRIS)496127839 - Phasendiagramm und Phenomenologie des QCD Übergangs (496127839) (496127839)

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Database coverage:
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