Sequential Strangeness Freeze-out

Abstract

I will describe the latest results from lattice QCD pertaining to a potential flavour hierarchy in the hadronic freeze-out from the QCD crossover region. I will compare these results to a variety of improved hadronic resonance gas calculations and to experimental data of fluctuations of net-charge, net-proton and net-kaon multiplicity distributions, which serve as a proxy for the susceptibilities of conserved quantum numbers on the lattice. I will conclude that there is intriguing evidence for a flavour dependent freeze-out, and I will suggest expansions to the experimental program at RHIC and the LHC that could potentially demonstrate the impact of a flavour separation during hadronization.

6 pages, 4 figures, SQM 2017 proceedings

References in corpus (3)

• The Thermal Production of Strange and Non-Strange Hadrons in e+e- Collisions
• Universal Strangeness Production in Hadronic and Nuclear Collisions
• Strangeness Production in AA and pp Collisions

Cited by in corpus (8)

• System Size and Flavour Dependence of Chemical Freeze-out Temperatures in ALICE Data from pp, pPb and PbPb Collisions at LHC Energies
• Diffusion and fluctuations of open charmed hadrons in an interacting hadronic medium
• Microscopic study of strange hadron productions at the LHC with$\sqrt{s_{NN}}$=2.76 TeV
• Study of freeze-out dynamics of strange hadrons
• Energy dependent chemical potentials of light particles and quarks from yield ratios of antiparticles to particles in high energy collisions
• Energy dependent chemical potentials of light hadrons and quarks based on transverse momentum spectra and yield ratios of negative to positive particles
• Light particle and quark chemical potentials from negatively to positively charged particle yield ratios corrected by removing strong and weak decays
• Influence of modified light-flavor hadron spectra on particle yields in the statistical hadronization model