On the energy dependence of $K/\pi$ fluctuations in relativistic heavy ion collisions

Abstract

In this note we will discuss the energy dependence of particle ratio fluctuations in heavy ion collisions. We study how the inherent multiplicity dependence of ratio fluctuations is reflected in the excitation function of the dynamical fluctuations. Specifically, we will show that the observed excitation function of dynamical $K/\pi$ fluctuations is consistent with the expected dependence on the number of accepted pions and kaons in both the STAR and NA49 experiments.

References in corpus (5)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• K/pi Fluctuations at Relativistic Energies
• Beam-Energy and System-Size Dependence of Dynamical Net Charge Fluctuations
• Fluctuations of the $K/\pi$ Ratio in Nucleus-Nucleus Collisions: Statistical and Transport Models
• A statistical model analysis of $K/\pi$ fluctuations in heavy ion collisions

Cited by in corpus (13)

• Strongly Intensive Quantities
• Phase Space and Dynamical Fluctuations of Kaon--to--Pion Ratios
• Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
• Identity Method for Particle Number Fluctuations and Correlations
• Energy dependence of kaon-to-proton ratio fluctuations in central Pb+Pb collisions from $\sqrt{s_{NN}}$ = 6.3 to 17.3 GeV
• Relative particle yield fluctuations in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=2.76$ TeV
• Dynamics of critical fluctuations: Theory -- phenomenology -- heavy-ion collisions
• System size dependence of particle-ratio fluctuations in Pb+Pb collisions at 158$A$ GeV
• Multiplicity fluctuation and correlation of identified baryons in quark combination model
• New results on event-by-event ratio fluctuations in Pb+Pb collisions at CERN SPS energies
• Recent results from NA61/SHINE and NA49
• Multiplicity fluctuation and correlation of mesons and baryons in ultra-relativistic heavy-ion collisions at LHC
• New results from fluctuation analysis in NA49 at the CERN SPS