Strangeness neutrality and baryon-strangeness correlations

Abstract

We derive a simple relation between strangeness neutrality and baryon-strangeness correlations. In heavy-ion collisions, the former is a consequence of quark number conservation of the strong interactions while the latter are sensitive probes of the character of QCD matter. This relation allows us to directly extract baryon-strangeness correlations from the strangeness chemical potential at strangeness neutrality. The explicit calculations are performed within a low energy theory of QCD with 2+1 dynamical quark flavors at finite temperature and density. Non-perturbative quark and hadron fluctuations are taken into account within the functional renormalization group. The results show the pronounced sensitivity of baryon-strangeness correlations on the QCD phase transition and the crucial role that strangeness neutrality plays for this observable.

5 pages, 3 figures; published version

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Cited by in corpus (14)

• The nonperturbative functional renormalization group and its applications
• The QCD phase structure at finite temperature and density
• QCD at finite temperature and chemical potential from Dyson-Schwinger equations
• Hyper-order baryon number fluctuations at finite temperature and density
• QCD at finite temperature and density within the fRG approach: An overview
• Off-diagonal correlators of conserved charges from lattice QCD and how to relate them to experiment
• Chiral Susceptibility in (2+1)-flavour QCD
• QCD Equation of State at Finite Chemical Potentials for Relativistic Nuclear Collisions
• Shocks and quark-meson scatterings at large density
• Renormalization Group Studies of Dense Relativistic Systems
• Ripples of the QCD Critical Point
• Real-time dynamics of the $O(4)$ scalar theory within the fRG approach
• Critical behaviors of the $O(4)$ and $Z(2)$ symmetries in the QCD phase diagram
• New Insight about the Effective Restoration of U_A(1) Symmetry