# CEM equation of state in a tabulated format

Cluster expansion model (CEM) is a lattice-based model for the QCD equation of state at finite baryon densities. See more info here and here. It is provided here in a tabulated form.

**Download**: CEM-urqmdstyleEoS.zip

The archive contains three files: `CEMmini.dat`

, `CEMsmall.dat`

, and `CEMbig.dat`

.
All files have the same format and correspond to different ranges of tabulated energy and baryon number densities. The table format is the following:

- Temperature [MeV]
- Baryochemical potential [MeV]
- Energy density in units of $e_0$, where $e_0$ = 0.14651751415742 GeV/fm$^3$
- Pressure in units of $e_0$, where $e_0$ = 0.14651751415742 GeV/fm$^3$
- Baryon number density in units of $n_0$, where $n_0$ = 0.15891 fm$^{-3}$
- Entropy density in units of $n_0$, where $n_0$ = 0.15891 fm$^{-3}$
- $\mu_S$ [MeV], here equals zero everywhere
- Auxialiary column for UrQMD stuff, which is not used here and filled with 1

## Attribution

Please cite the following paper when using this code:

- V. Vovchenko, J. Steinheimer, O. Philipsen, H. Stoecker,
*Cluster Expansion Model for QCD Baryon Number Fluctuations: No Phase Transition at $\mu_B/T < \pi$*, Phys. Rev. D**97**, 114030 (2018), arXiv:1711.01261 [hep-ph]