Mott-Anderson freeze-out and the strange matter "horn"

Abstract

We discuss the $\sqrt{s}$-dependence of the $K^{+}/{\pi }^{+}$ ratio in heavy-ion collisions (the "horn" effect) within a Mott-Anderson localization model for chemical freeze-out. The different response of pion and kaon radii to the hot and dense hadronic medium results in different freeze-out conditions. We demonstrate within a simple model that this circumstance enhances the "horn" effect relative to statistical models with universal chemical freeze-out.

arXiv comment8 pages, 4 figures

References in corpus (9)

• Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
• Hadron production in Au-Au collisions at RHIC
• Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
• Hadron Production in Ultra-relativistic Nuclear Collisions: Quarkyonic Matter and a Triple Point in the Phase Diagram of QCD
• Hadronization and Hadronic Freeze-Out in Relativistic Nuclear Collisions
• Explanation of hadron transverse-momentum spectra in heavy-ion collisions at sqrt(sNN) = 2.76 TeV within chemical non-equilibrium statistical hadronization model
• Chiral condensate in hadronic matter
• Chiral condensate and chemical freeze-out
• Chiral condensate and Mott-Anderson freeze-out

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• Fluctuations as a test of chemical non-equilibrium at the LHC
• Strange matter and kaon to pion ratio in SU(3) PNJL model
• Chiral phase transition and kaon-to-pion ratios in the entanglement SU(3) PNJL model