Correlating the skewness and kurtosis of baryon number distributions

Abstract

The skewness and the kurtosis of the baryon number distributions are computed within QCD-improved low energy effective models including quantum thermal and density fluctuations. The results are compared with the Beam Energy Scan experiment at RHIC. The theoretical results agree with the experimental measurements up to errors, for the collision energy $\sqrt{s}\ge 19.6\mathrm{GeV}$. For smaller collision energies a discrepancy between theoretical and experimental results develops. This discrepancy partially relates to the lack of precision of the current setup for small collision energies. It is outlined how this deficiency can be overcome.

7 pages, 3 figures, 1 table; updated to match version published in Phy. Rev. D

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• Baryon number fluctuations at finite temperature and density
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• QCD phase transitions via a refined truncation of Dyson-Schwinger equations
• Baryon number fluctuations in chiral effective models and their phenomenological implications
• Interface Effect in QCD Phase Transitions via Dyson-Schwinger Equation Approach
• Chiral matrix model of the semi-Quark Gluon Plasma in QCD
• Shocks and quark-meson scatterings at large density
• Strangeness Neutrality and QCD Thermodynamics
• Baryon number fluctuations in the 2+1 flavor low energy effective model
• Ripples of the QCD Critical Point
• Real-time dynamics of the $O(4)$ scalar theory within the fRG approach
• Mesonic dynamics and QCD phase transition
• Critical behaviors of the $O(4)$ and $Z(2)$ symmetries in the QCD phase diagram
• Four-quark scatterings in QCD I
• Baryon number probability distribution at finite temperature
• Four-fermion interactions and the chiral symmetry breaking in an external magnetic field
• Correlations of conserved charges and QCD phase structure
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• Chiral criticality and glue dynamics