Resummed lattice QCD equation of state at finite baryon density: Strangeness neutrality and beyond
Szabolcs Borsányi (Department of Physics, Wuppertal University, Gaussstrasse 20, D-42119 Wuppertal, Germany); Jana N. Guenther (Department of Physics, Wuppertal University, Gaussstrasse 20, D-42119 Wuppertal, Germany); Ruben Kara (Department of Physics, Wuppertal University, Gaussstrasse 20, D-42119 Wuppertal, Germany); Zoltán Fodor (Pennsylvania State University, Department of Physics, University Park, Pennsylvania 16802, USA; Department of Physics, Wuppertal University, Gaussstrasse 20, D-42119 Wuppertal, Germany; Institute for Theoretical Physics, ELTE Eötvös Loránd University, Pázmány P. sétány 1/A, H-1117 Budapest, Hungary; Jülich Supercomputing Centre, Forschungszentrum Jülich, D-52425 Jülich, Germany; and Physics Department, UCSD, San Diego, California 92093, USA); Paolo Parotto (Pennsylvania State University, Department of Physics, University Park, Pennsylvania 16802, USA); et al - Show all 8 authors
We calculate a resummed equation of state with lattice QCD simulations at imaginary chemical potentials. This work presents a generalization of the scheme introduced in [Phys. Rev. Lett. 126, 232001 (2021) to the case of nonzero , focusing on the line of strangeness neutrality. We present results up to on the strangeness neutral line in the temperature range . We also extrapolate the finite baryon density equation of state to small nonzero values of the strangeness-to-baryon ratio . We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 time slices.
