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

Research output: Contribution to journalConference articlepeer-review


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
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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