PoS - Proceedings of Science
Volume 430 - The 39th International Symposium on Lattice Field Theory (LATTICE2022) - Non-zero Density
Resummed lattice QCD equation of state at finite baryon density: strangeness neutrality and beyond
J.N. Günther*, S. Borsanyi, Z. Fodor, M. Giordano, R. Kara, S.D. Katz, P. Parotto, A. Pasztor, C. Ratti, K.K. Szabó and C.H. Wong
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Pre-published on: February 03, 2023
Published on: April 06, 2023
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 $\mu_S$ , and focusing on the line of strangeness neutrality.
We present results up to $\mu_B/T\leq 3.5$ on the strangeness neutral line $\langle S\rangle=0$ in the temperature range 130~MeV$\leq T \leq $~280~MeV. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio $R=\langle S\rangle/\langle B\rangle $.
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.
DOI: https://doi.org/10.22323/1.430.0150
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