Investigating high energy proton proton collisions with a multi-phase transport model approach based on PYTHIA8 initial conditions

Abstract

The striking resemblance of high multiplicity proton-proton (pp) collisions at the LHC to heavy ion collisions challenges our conventional wisdom on the formation of the Quark-Gluon Plasma (QGP). A consistent explanation of the collectivity phenomena in pp will help us to understand the mechanism that leads to the QGP-like signals in small systems. In this study, we introduce a transport model approach connecting the initial conditions provided by PYTHIA8 with subsequent AMPT rescatterings to study the collective behavior in high energy pp collisions. The multiplicity dependence of light hadron productions from this model is in reasonable agreement with the pp $\sqrt{s}=13$ TeV experimental data. It is found in the comparisons that both the partonic and hadronic final state interactions are important for the generation of the radial flow feature of the pp transverse momentum spectra. The study also shows that the long range two particle azimuthal correlation in high multiplicity pp events is sensitive to the proton sub-nucleon spatial fluctuations.

References in corpus (55)

• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• An Introduction to PYTHIA 8.2
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• EPOS LHC : test of collective hadronization with LHC data
• Event-by-event anisotropic flow in heavy-ion collisions from combined Yang-Mills and viscous fluid dynamics
• Formation of superdense hadronic matter in high energy heavy-ion collisions
• ZPC 1.0.1: a parton cascade for ultrarelativistic heavy ion collisions
• Partonic effects on the elliptic flow at relativistic heavy ion collisions
• Small System Collectivity in Relativistic Hadron and Nuclear Collisions
• Initial state geometry and the role of hydrodynamics in proton-proton, proton-nucleus and deuteron-nucleus collisions
• Multiple Interactions and the Structure of Beam Remnants
• One fluid to rule them all: viscous hydrodynamic description of event-by-event central p+p, p+Pb and Pb+Pb collisions at $\sqrt{s}=5.02$ TeV
• Novel Collective Phenomena in High-Energy Proton-Proton and Proton-Nucleus Collisions
• Color reconnection and flow-like patterns in pp collisions
• Analysing radial flow features in p-Pb and p-p collisions at several TeV by studying identified particle production in EPOS3
• Evidence of strong proton shape fluctuations from incoherent diffraction
• Azimuthal collimation of long range rapidity correlations by strong color fields in high multiplicity hadron-hadron collisions
• The Angantyr model for Heavy-Ion Collisions in PYTHIA8
• Elliptic and triangular flow in p+Pb and peripheral Pb+Pb collisions from parton scatterings
• Imprints of fluctuating proton shapes on flow in proton-lead collisions at the LHC
• Eccentric protons? Sensitivity of flow to system size and shape in p+p, p+Pb and Pb+Pb collisions
• Evidence for BFKL and saturation dynamics from di-hadron spectra at the LHC
• Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
• Anisotropic parton escape is the dominant source of azimuthal anisotropy in transport models
• Effects of Colour Reconnection on Hadron Flavour Observables
• Collectivity without plasma in hadronic collisions
• Glauber modeling of high-energy nuclear collisions at sub-nucleon level
• Mass ordering of spectra from fragmentation of saturated gluon states in high multiplicity proton-proton collisions
• Initial condition for hydrodynamics, partonic free streaming, and the uniform description of soft observables at RHIC
• Elliptic and triangular flow anisotropy in deuteron-gold collisions at RHIC and proton-lead collisions at the LHC
• Predictions for $\sqrt{s_{NN}}=5.02$ TeV Pb+Pb Collisions from a Multi-Phase Transport Model
• The Space-Time Structure of Hadronization in the Lund Model
• Hydrodynamic Collectivity in Proton--Proton Collisions at 13 TeV
• Improved Quark Coalescence for a Multi-Phase Transport Model
• Estimates of hadron azimuthal anisotropy from multiparton interactions in proton-proton collisions at sqrt(s) = 14 TeV
• Multiparticle collectivity from initial state correlations in high energy proton-nucleus collisions
• Long-range azimuthal correlations in proton-proton and proton-nucleus collisions from the incoherent scattering of partons
• Initial state fluctuations in collisions between light and heavy ions
• Hydrodynamic predictions for 5.02 TeV Pb-Pb collisions
• Wounded quarks in A+A, p+A, and p+p collisions
• Diffractive and non-diffractive wounded nucleons and final states in pA collisions
• Unified description of hadron yield ratios from dynamical core-corona initialization
• Azimuthal Anisotropy Relative to the Participant Plane from AMPT in Central p+Au, d+Au, and ${}^3$He+Au Collisions at $\sqrt{s_{NN}}=200$ GeV
• Testing Hydrodynamic Descriptions of of p+p Collisions at \sqrt{s}=7 TeV
• GLISSANDO 3: GLauber Initial-State Simulation AND mOre..., ver. 3
• Searching for small droplets of hydrodynamic fluid in proton--proton collisions at the LHC
• Are minimal conditions for collectivity met in e+e- collisions?
• Elliptic Anisotropy $v_2$ May Be Dominated by Particle Escape instead of Hydrodynamic Flow
• A Framework for Hadronic Rescattering in pp Collisions
• Multiparticle azimuthal cumulants in p+Pb collisions from a multiphase transport model
• Rope Hadronization and Strange Particle Production
• Origin of the mass splitting of azimuthal anisotropies in a multi-phase transport model
• Enhanced production of strange baryons in high energy nuclear collisions from a multiphase transport model
• A systematic study of the initial state in heavy ion collisions based on the quark participant assumption

Cited by in corpus (9)

• Further developments of a multi-phase transport model for relativistic nuclear collisions
• Implication of two-baryon azimuthal correlations in $pp$ collisions at LHC energies on the QGP
• The universal scaling of kinetic freeze-out parameters across different collision systems at the LHC energy
• Disentangling the development of collective flow in high energy proton proton collisions with a multiphase transport model
• Investigating the pion emission source in pp collisions using the AMPT model with sub-nucleon structure
• Disentangling effects of nucleon size and nucleus structure in relativistic heavy-ion collisions
• Investigating jet induced identified hadron productions from the relative transverse activity classifier in pp collision at LHC
• Studies of beauty hadron and non-prompt charm hadron production in pp collisions at $\sqrt{s}$=13 TeV within a transport model approach
• A comparison study of collisions at relativistic energies involving light nuclei