Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond

Jana N. Guenther, Szabolcs Borsanyi, Zoltan Fodor, Matteo Giordano, Sandor D. Katz, Ruben Kara, Paolo Parotto, Attila Pasztor, Claudia Ratti, Kalman K. Szabo, Chik Him Wong

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Abstract

We calculate a resummed equation of state with lattice QCD simulations at imaginary chemical potentials, generalizing the scheme introduced in our previous work to the case of non-zero μS, and focusing on the line of strangeness neutrality. We present results up to μB/T ≤ 3.5 on the strangeness neutral line 〈S〉 = 0 in the temperature range 130 MeV≤ T ≤ 280 MeV. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio R = 〈S〉/〈B〉. We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 time slices. Finally we test the resummation scheme in a small volume by comparison with direct simulations.

Original languageEnglish (US)
Article number150
JournalProceedings of Science
Volume430
StatePublished - Apr 6 2023
Event39th International Symposium on Lattice Field Theory, LATTICE 2022 - Bonn, Germany
Duration: Aug 8 2022Aug 13 2022

All Science Journal Classification (ASJC) codes

  • General

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