Lattice-based QCD equation of state at finite baryon density: Cluster Expansion Model
High Energy Physics - Lattice
2019-02-20 v1 High Energy Physics - Phenomenology
Nuclear Theory
Abstract
The QCD equation of state at finite baryon density is studied in the framework of a Cluster Expansion Model (CEM), which is based on the fugacity expansion of the net baryon density. The CEM uses the two leading Fourier coefficients, obtained from lattice simulations at imaginary , as the only model input and permits a closed analytic form. Excellent description of the available lattice data at both and at imaginary is obtained. We also demonstrate how the Fourier coefficients can be reconstructed from baryon number susceptibilities.
Keywords
Cite
@article{arxiv.1807.06472,
title = {Lattice-based QCD equation of state at finite baryon density: Cluster Expansion Model},
author = {V. Vovchenko and J. Steinheimer and O. Philipsen and A. Pasztor and Z. Fodor and S. D. Katz and H. Stoecker},
journal= {arXiv preprint arXiv:1807.06472},
year = {2019}
}
Comments
4 pages, 3 figures. Contribution to the Quark Matter 2018 conference proceedings