Impact of resonance decays on critical point signals in net-proton fluctuations

Abstract

The non-monotonic beam energy dependence of the higher cumulants of net-proton fluctuations is a widely studied signature of the conjectured presence of a critical point in the QCD phase diagram. In this work we study the effect of resonance decays on critical fluctuations. We show that resonance effects reduce the signatures of critical fluctuations, but that for reasonable parameter choices critical effects in the net-proton cumulants survive. The relative role of resonance decays has a weak dependence on the order of the cumulants studied with a slightly stronger suppression of critical effects for higher-order cumulants.

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Cited by in corpus (24)

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• Theoretical and Experimental Constraints for the Equation of State of Dense and Hot Matter
• Far-from-equilibrium search for the QCD critical point
• Stochastic hydrodynamics and long time tails of an expanding conformal charged fluid
• Freezing Out Fluctuations in Hydro+ Near the QCD Critical Point
• Modeling the diffusive dynamics of critical fluctuations near the QCD critical point
• Critical behavior of the bulk viscosity in QCD
• Critical point of nuclear matter and beam energy dependence of net proton number fluctuations
• Freeze-out conditions from strangeness observables at RHIC
• Rapidity dependence of proton cumulants and correlation functions
• Critical net-baryon fluctuations in an expanding system
• Fluctuating fluid dynamics for the QGP in the LHC and BES era
• Dynamics of critical fluctuations: Theory -- phenomenology -- heavy-ion collisions
• Multiplicity fluctuations near the QCD critical point
• Baryon number diffusion with critical fluctuations
• Effects of resonance weak decays and hadronic re-scattering on the proton number fluctuations in Au + Au collisions at $\sqrt{s_{\mathrm{NN}}}=5$ GeV from JAM model
• Impact of hadronic interactions and conservation laws on cumulants of conserved charges in a dynamical model
• Net-proton number fluctuations in the presence of the QCD critical point
• The equilibrium and dynamical cumulants of QCD chiral order parameter with parametric Landau free energy
• Partonic Critical Opalescence and Its Impact on the Jet Quenching Parameter $\hat{q}$
• Collision-energy Dependence of Deuteron Cumulants and Proton-deuteron Correlations in Au+Au collisions at RHIC
• Dynamical and finite-size effects on the criterion of first-order phase transition
• Influence of Backside Energy Leakages from Hadronic Calorimeters on Fluctuation Measures in Relativistic Heavy-Ion Collisions