Strangeness neutral equation of state for QCD with a critical point

Autor:	Stafford, J. M., Mroczek, D., Acuna, A. R. Nava, Noronha-Hostler, J., Parotto, P., Price, D. R. P., Ratti, C.
Rok vydání:	2021
Předmět:	High Energy Physics - Phenomenology Nuclear Theory
Druh dokumentu:	Working Paper
Popis:	We present a strangeness-neutral equation of state for QCD that exhibits critical behavior and matches lattice QCD results for the Taylor-expanded thermodynamic variables up to fourth-order in $\mu_B/T$. It is compatible with the SMASH hadronic transport approach and has a range of temperatures and baryonic chemical potentials relevant for phase II of the Beam Energy Scan at RHIC. We provide an updated version of the software BES-EoS, which produces an equation of state for QCD that includes a critical point in the 3D Ising model universality class. This new version also includes isentropic trejectories and the critical contribution to the correlation length. Since heavy-ion collisions have zero global net-strangeness density and a fixed ratio of electric charge to baryon number, the BES-EoS is more suitable to describe this system. Comparison with the previous version of the EoS is thoroughly discussed. Comment: 11 pages, 11 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2103.08146 Zobrazit plný text záznamu View this record from Arxiv