Higher order fluctuations and correlations of conserved charges from lattice QCD
By S. Borsányi, Zoltán Fodor, J. Guenther, Sandor K. Katz, Kálmán K. Szabó, Attila Pásztor, I. Portillo, C. Ratti. Journal of High Energy Physics, 2018
143 citations recorded by the source corpus.
We calculate several diagonal and non-diagonal fluctuations of conserved charges in a system of 2+1+1 quark flavors with physical masses, on a lattice with size 483 × 12. Higher order fluctuations at μB = 0 are obtained as derivatives of the lower order ones, simulated at imaginary chemical potential. From these correlations and fluctuations we construct ratios of net-baryon number cumulants as functions of temperature and chemical potential, which satisfy the experimental conditions of strangeness neutrality and proton/baryon ratio. Our results qualitatively explain the behavior of the measured cumulant ratios by the STAR collaboration.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/afa8443bb16a221163c6cfe268bc173e0107f54a
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In Nuclear and High Energy Physics
Citations in the corpus
- QCD at finite temperature and chemical potential from Dyson–Schwinger equations (2018, background): “Furthermore various higher order fluctuations have been determined as functions of temperature and chemical potential [128–134].”
- Mapping the phases of quantum chromodynamics with beam energy scan (2019, unknown): “As discussed in [91–94] in the context of model as well as lattice QCD calculations, a cross-over transition results in negative sixth and eighth order”