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

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arxiv 2202.05574 v2 pith:Z3QK3HZY submitted 2022-02-11 hep-lat hep-phnucl-th

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

Szabolcs Borsanyi , Zoltan Fodor , Jana N. Guenther , Ruben Kara , Paolo Parotto , Attila Pasztor , Claudia Ratti , Kalman K. Szabo This is my paper
classification hep-lat hep-phnucl-th
keywords equationlanglelatticeleftranglerightstatestrangeness
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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 2102.06660 to the case of non-zero $\mu_S$, focusing on the line of strangeness neutrality. We present results up to $\mu_B/T \leq 3.5$ on the strangeness neutral line $\left\langle S \right\rangle = 0$ in the temperature range $130 \rm{MeV} \leq T \leq 280 \rm{MeV}$. We also extrapolate the finite baryon density equation of state to small non-zero values of the strangeness-to-baryon ratio $R=\left\langle S \right\rangle / \left\langle B \right\rangle$. We perform a continuum extrapolation using lattice simulations of the 4stout-improved staggered action with 8, 10, 12 and 16 timeslices.

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Cited by 6 Pith papers

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  3. Four-dimensional QCD equation of state from a quasi-parton model with physics-informed neural networks

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  4. Finite-density equation of state of hot QCD using the complex Langevin equation

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    Continuum-extrapolated lattice QCD simulations with complex Langevin produce the equation of state at high baryon chemical potentials above the crossover temperature at the physical point.

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