Lattice QCD thermodynamics at finite chemical potential and its comparison with Experiments
Abstract
We compare higher moments of baryon numbers measured at the RHIC heavy ion collision experiments with those by the lattice QCD calculations. We employ the canonical approach, in which we can access the real chemical potential regions avoiding the sign problem. In the lattice QCD simulations, we study several fits of the number density in the pure imaginary chemical potential, and analyze how these fits affects behaviors at the real chemical potential. In the energy regions between =19.6 and 200 GeV, the susceptibility calculated at is consistent with experimental data at , while the kurtosis shows similar behavior with that of the experimental data in the small regions . The experimental data at 11.5 shows quite different behavior. The lattice result in the deconfinement region,, is far from experimental data.
Keywords
Cite
@article{arxiv.1704.03980,
title = {Lattice QCD thermodynamics at finite chemical potential and its comparison with Experiments},
author = {D. Boyda and V. G. Bornyakov and V. Goy and A. Molochkov and A. Nakamura and A. Nikolaev and V. I. Zakharov},
journal= {arXiv preprint arXiv:1704.03980},
year = {2018}
}