The role of the chiral phase transition in modelling the kaon to pion ratio

Abstract

A sharp peak in the $K^{+}/{\pi }^{+}$ ratio in relativistic heavy-ion collision is discussed in the framework of the SU(3) Polyakov-loop extended NJL model with vector interaction. In the model, the $K^{+}/{\pi }^{+}$ ratio was calculated along the chiral phase transition line for different values of the vector coupling $g_V$. We showed that the value of the vector coupling had no significant effect on the $K^{+}/{\pi }^{+}$ behaviour.

arXiv comment6 pages, 3 figs

References in corpus (19)

• The chiral and deconfinement aspects of the QCD transition
• Phases of QCD: lattice thermodynamics and a field theoretical model
• Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Phase diagrams in the three-flavor Nambu--Jona-Lasinio model with the Polyakov loop
• Thermal hadron production in relativistic nuclear collisions: the hadron mass spectrum, the horn, and the QCD phase transition
• Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement
• Role of Vector Interaction and Axial Anomaly in the PNJL Modeling of the QCD Phase Diagram
• Onset of deconfinement in nucleus-nucleus collisions: Review for pedestrians and experts
• Chiral symmetry restoration in heavy-ion collisions at intermediate energies
• How parameters and regularization affect the PNJL model phase diagram and thermodynamic quantities
• Pseudoscalars Mesons in Hot, Dense Matter
• Explanation of hadron transverse-momentum spectra in heavy-ion collisions at sqrt(sNN) = 2.76 TeV within chemical non-equilibrium statistical hadronization model
• Impact of the vector interaction on the phase structure of QCD matter
• The horn in the kaon to pion ratio
• Recent results from NA61/SHINE
• Effects of Model Parameters in Thermodynamics of the PNJL Model
• Strange matter and kaon to pion ratio in SU(3) PNJL model
• Evidence for chiral symmetry restoration in heavy-ion collisions