Equation of state of a hot-and-dense quark gluon plasma: Lattice simulations at real μb vs extrapolations

Szabolcs Borsányi, Zoltán Fodor, Matteo Giordano, Jana N. Guenther, Sándor D. Katz, Attila Pásztor, Chik Him Wong

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

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 μB>0, using reweighting techniques free from an overlap problem. We use 2stout improved staggered fermions with eight time slices and cover the entire Relativistic Heavy Ion Collider Beam Energy Scan range in the baryochemical potential, up to μB/T=3.

Original languageEnglish (US)
Article numberL091503
JournalPhysical Review D
Volume107
Issue number9
DOIs
StatePublished - May 1 2023

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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