| Issue |
EPJ Web Conf.
Volume 296, 2024
30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2023)
|
|
|---|---|---|
| Article Number | 14005 | |
| Number of page(s) | 4 | |
| Section | QCD at Finite T and Density | |
| DOI | https://doi.org/10.1051/epjconf/202429614005 | |
| Published online | 26 June 2024 | |
https://doi.org/10.1051/epjconf/202429614005
QCD material parameters at zero and non-zero chemical potential from the lattice
1 Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, United States
2 RIKEN Center for Computational Science, Kobe 650-0047, Japan
3 Fakultät für Physik, Universität Bielefeld, D-33615 Bielefeld, Germany
4 Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
* e-mail: clarke.davida@gmail.com
Published online: 26 June 2024
Using an eighth-order Taylor expansion in baryon chemical potential, we recently obtained the (2+1)-flavor QCD equation of state (EoS) at nonzero conserved charge chemical potentials from the lattice. We focused on strangeness-neutral, isospin-symmetric QCD matter, which closely resembles the situation encountered in heavy-ion collision experiments. Using this EoS, we present here results on various QCD material parameters; in particular we compute the specific heat, speed of sound, and compressibility along appropriate lines of constant physics. We show that in the entire range relevant for the beam energy scan at RHIC, the specific heat, speed of sound, and compressibility show no indication for an approach to critical behavior that one would expect close to a possibly existing critical endpoint.
© The Authors, published by EDP Sciences, 2024
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