Baryon Number, Strangeness and Electric Charge Fluctuations in QCD at High Temperature
By M. Cheng, P. Hegde, C. Jung, F. Karsch, O. Kaczmarek, E. Laermann, R. Mawhinney, C. Miao, P. Petreczky, C. Schmidt and 1 more. 2008
204 citations recorded by the source corpus.
We analyze baryon number, strangeness, and electric charge fluctuations as well as their correlations in QCD at high temperature. We present results obtained from lattice calculations performed with an improved staggered fermion action (p4 action) at two values of the lattice cutoff with almost physical up and down quark masses and a physical value for the strange quark mass. We compare these results, with an ideal quark gas at high temperature and a hadron resonance gas model at low temperature. We find that fluctuations and correlations are well described by the former already for temperatures about 1.5 times the transition temperature. At low temperature qualitative features of the lattice results are quite well described by a hadron resonance gas model. Higher order cumulants, which become increasingly sensitive to the light pions, however, show deviations from a resonance gas in the vicinity of the transition temperature.
Subfields: Condensed Matter Physics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/14a1eba487b7d76b7dcbae739775ce7f83dfef88
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Condensed Matter Physics
In Nuclear and High Energy Physics
Citations in the corpus
- QCD at finite temperature and chemical potential from Dyson–Schwinger equations (2018, background): “13: Left diagram: Temperature dependence of the ratio χq4/χ q 2 proportional to the kurtosis determined from DSEs (model gluon) compared to the lattice results of [128].”
- Gauge/String Duality, Hot QCD and Heavy Ion Collisions (2011, unknown): “Lattice results for these quantities [213] are shown in Fig.”
- 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”
- 3ΛH and -3Λ-H production in Pb-Pb collisions at √sNN=2.76 TeV (2015, unknown): “…a valuable tool to probe the nature of the matter created in the collision, since it is sensitive to the local baryon-strangeness correlation [58–60]: a value of S 3 close to unity would indicate that the phase-space populations for strange and light quarks are similar and would support the…”