Lattice-based equation of state with 3D Ising critical point
| Autor: | Kahangirwe, Micheal, Bass, Steffen A., Jahan, Johannes, Moreau, Pierre, Parotto, Paolo, Ratti, Claudia, Soloveva, Olga, Stephanov, Misha, Bratkovskaya, Elena |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| Popis: | The BEST Collaboration equation of state combining lattice data with the 3D Ising critical point encounters limitations due to the truncated Taylor expansion up to $\frac{\mu_B}{T} \sim 2.5$. This truncation consequently restricts its applicability at high densities. Through a resummation scheme, the lattice results have been extended to $\frac{\mu_B}{T} = 3.5$. In this article, we amalgamate these ideas with the 3D-Ising model, yielding a family of equations of state valid up to $\mu_B=700 \text{MeV}$ with the correct critical behavior. Our equations of state feature tunable parameters, providing a stable and causal framework-a crucial tool for hydrodynamics simulations. Comment: 4 pages, 2 figures, Contribution to Quark Matter2023 (Houston, TX, 3-9 Sep. 2023) |
| Databáze: | arXiv |
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