Fluctuations and correlations in high temperature QCD

By R. Bellwied, S. Borsányi, Zoltán Fodor, Sándor D. Katz, Attila Pásztor, C. Ratti, Kálmán K. Szabó. 2015

165 citations recorded by the source corpus.

We calculate second- and fourth-order cumulants of conserved charges in a temperature range stretching from the QCD transition region towards the realm of (resummed) perturbation theory. We perform lattice simulations with staggered quarks; the continuum extrapolation is based on $N_t=10\dots24$ in the crossover-region and $N_t=8\dots16$ at higher temperatures. We find that the Hadron Resonance Gas model predictions describe the lattice data rather well in the confined phase. At high temperatures (above $\sim$250 MeV) we find agreement with the three-loop Hard Thermal Loop results.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/db104684ea997e25ae6ec28da44d4ee863402d78

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nuclear and High Energy Physics

1. C. Fischer
2. Zoltán Fodor
3. Sándor D. Katz
4. Kálmán K. Szabó
5. S. Borsányi
6. C. Ratti
7. K. Saikawa
8. S. Shirai

Citations in the corpus

• The QCD equation of state at finite density from analytical continuation (2016, methodology): “Our lattice calculation uses the 4stout improved staggered action introduced in [4].”
• Higher order fluctuations and correlations of conserved charges from lattice QCD (2018, methodology): “At high temperatures higher order fluctuations quickly approach the Stefan-Boltzmann limit as it was seen in HTL perturbation theory [41, 42] as well as on lattice [28, 43].”
• 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].”
• The QCD phase diagram from analytic continuation (2015, methodology): “ Taylor expansion on one of our studied observables, and also to obtain a \baseline" for the shifted transition temperatures at other Bvalues. The zero density congurations are listed in Ref. [45]. The range of imaginary baryo-chemical potentials is limited by the RobergeWeiss transition at B”
• Primordial gravitational waves, precisely: the role of thermodynamics in the Standard Model (2018, result): “The hadron resonance gas model has shown a good agreement with lattice QCD results [62, 83] and successfully reproduced the experimental results observed in heavy ion collisions [see, e.”