Non-equilibrium components in very low transverse momentum region in high-energy nuclear collisions

Abstract

We analyze Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV with a novel framework based on the dynamical core--corona picture that describes particle productions from both equilibrium and non-equilibrium components. We remark the possibility of the contribution from non-equilibrium components at very low transverse momentum ($p_T$) region and show that such contributions significantly affect $p_T$-integrated four-particle cumulants. These results strongly suggest the necessity of non-equilibrium components when one extracts properties of the quark-gluon plasma from experimental data using sophisticated dynamical models based on relativistic hydrodynamics.

arXiv comment7 pages, 3 figures

References in corpus (35)

• A Brief Introduction to PYTHIA 8.1
• New Forms of QCD Matter Discovered at RHIC
• Thermal phenomenology of hadrons from 200 AGeV S+S collisions
• What RHIC Experiments and Theory tell us about Properties of Quark-Gluon Plasma ?
• QCD Equation of State and Hadron Resonance Gas
• Applying Bayesian parameter estimation to relativistic heavy-ion collisions: simultaneous characterization of the initial state and quark-gluon plasma medium
• Parton Ladder Splitting and the Rapidity Dependence of Transverse Momentum Spectra in Deuteron-Gold Collisions at RHIC
• Study of relativistic nuclear collisions at AGS energies from p+Be to Au+Au with hadronic cascade model
• Early thermalization at RHIC
• Multi-system Bayesian constraints on the transport coefficients of QCD matter
• New method for measuring azimuthal distributions in nucleus-nucleus collisions
• Perfect Fluidity of the Quark Gluon Plasma Core as Seen through its Dissipative Hadronic Corona
• Bayesian analysis of heavy ion collisions with the heavy ion computational framework Trajectum
• Phenomenological constraints on the transport properties of QCD matter with data-driven model averaging
• The Angantyr model for Heavy-Ion Collisions in PYTHIA8
• Dynamical initial state model for relativistic heavy-ion collisions
• A transverse momentum differential global analysis of Heavy Ion Collisions
• Investigations of anisotropic flow using multi-particle azimuthal correlations in pp, p-Pb, Xe-Xe, and Pb-Pb collisions at the LHC
• Centrality dependence of the nuclear modification factor of charged pions, kaons, and protons in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Quantifying properties of hot and dense QCD matter through systematic model-to-data comparison
• Interplay between soft and hard hadronic components for identified hadrons in relativistic heavy ion collisions
• Investigating the collision energy dependence of $\eta$/s in RHIC beam energy scan using Bayesian statistics
• Diffractive and non-diffractive wounded nucleons and final states in pA collisions
• Momentum transport away from a jet in an expanding nuclear medium
• Unified description of hadron yield ratios from dynamical core-corona initialization
• Explanation of hadron transverse-momentum spectra in heavy-ion collisions at sqrt(sNN) = 2.76 TeV within chemical non-equilibrium statistical hadronization model
• Bose-Einstein condensation of pions in heavy-ion collisions at the CERN Large Hadron Collider (LHC) energies
• Temperature dependence of $\eta /s$ of strongly interacting matter: effects of the equation of state and the parametric form of $(\eta /s)(T)$
• New approach to initializing hydrodynamic fields and mini-jet propagation in quark-gluon fluids
• Transverse-momentum spectra of strange particles produced in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV in the chemical non-equilibrium model
• Interplay between core and corona components in high-energy nuclear collisions
• Effects of $\rho$-meson width on pion distributions in heavy-ion collisions
• Global fluid fits to identified particle transverse momentum spectra from heavy-ion collisions at the Large Hadron Collider
• Enhancement of strange baryons in high-multiplicity proton-proton and proton-nucleus collisions
• Fluid velocity from transverse momentum spectra

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