Baseline study for net-proton number fluctuations at top energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider with the Angantyr model

Abstract

The multiplicity percentile dependence of cumulants, of net-proton number distributions in Au$-$Au collisions at $\sqrt{s_{NN}}=$ 200 GeV and Pb$-$Pb collisions at $\sqrt{s_{NN}}=$ 2.76 TeV has been investigated using the Angantyr model (the heavy-ion extension of the \textsc{Pythia 8} model). The effects of finite transverse momentum ($p_{\mathrm{T}}$) and pseudorapidity ($\eta$) acceptance on the net-proton cumulants have also been studied. Furthermore, the effects of the hydrodynamic expansion and feed down from weak decays were explored. It was found that radial flow has substantial impact on the cumulants and their ratios, while weak decays have a finite but relatively smaller effect. The obtained values of cumulants and their ratios with the Angantyr model, where the formation of thermalized medium is not assumed can serve as a baseline for future measurements.

arXiv comment14 pages, 9 figures, Published version

References in corpus (45)

• An Introduction to PYTHIA 8.2
• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• EPOS LHC : test of collective hadronization with LHC data
• Signatures of the Tricritical Point in QCD
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Event-by-Event Fluctuations in Heavy Ion Collisions and the QCD Critical Point
• HIJING 1.0: A Monte Carlo Program for Parton and Particle Production in High Energy Hadronic and Nuclear Collisions
• Non-Gaussian fluctuations near the QCD critical point
• Centrality dependence of $\pi$, K, p production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• On the Phase Diagram of QCD
• Energy Dependence of Moments of Net-proton Multiplicity Distributions at RHIC
• Challenges in QCD matter physics - The Compressed Baryonic Matter experiment at FAIR
• Universality, the QCD critical/tricritical point and the quark number susceptibility
• Chiral Phase Transition within Effective Models with Constituent Quarks
• Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC
• Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
• Freeze-out Conditions in Heavy Ion Collisions from QCD Thermodynamics
• Fluctuations as probe of the QCD phase transition and freeze-out in heavy ion collisions at LHC and RHIC
• Canonical partition function and finite density phase transition in lattice QCD
• Confronting LHC data with the statistical hadronization model
• Freeze-out conditions from net-proton and net-charge fluctuations at RHIC
• The Angantyr model for Heavy-Ion Collisions in PYTHIA8
• Is there a flavor hierarchy in the deconfinement transition of QCD?
• Critical Points in the Linear Sigma Model with Quarks
• THERMINATOR 2: THERMal heavy IoN generATOR 2
• Baryon number conservation and the cumulants of the net proton distribution
• Thermal-FIST: A package for heavy-ion collisions and hadronic equation of state
• Conserved number fluctuations in a hadron resonance gas model
• Bridging the gap between event-by-event fluctuation measurements and theory predictions in relativistic nuclear collisions
• Volume Fluctuation and Autocorrelation Effects in the Moment Analysis of Net-proton Multiplicity Distributions in Heavy-Ion Collisions
• Canonical statistical model analysis of p-p, p-Pb, and Pb-Pb collisions at the LHC
• Acceptance dependence of fluctuation measures near the QCD critical point
• Error Estimation for Moments Analysis in Heavy-Ion Collision Experiments
• Freeze-out temperature from net-Kaon fluctuations at RHIC
• Nonequilibrium time evolution of higher order cumulants of conserved charges and event-by-event analysis
• Effects of kinematic cuts on net-electric charge fluctuations
• Cumulants of Net-Proton, Net-Kaon and Net-Charge Multiplicity Distributions in Au+Au Collisions at RHIC BES Energies from UrQMD Model
• First Study of the Negative Binomial Distribution Applied to Higher Moments of Net-charge and Net-proton Multiplicity Distributions
• Baseline study for higher moments of net-charge distribution at RHIC energies
• Volume fluctuation and multiplicity correlation on higher-order cumulants
• Higher moment fluctuations of identified particle distributions from ALICE
• Correlation functions of net-proton multiplicity distributions in Au + Au collisions at energies available at the BNL Relativistic Heavy Ion Collider from a multiphase transport model
• Radial flow afterburner for event generators and the baryon puzzle

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