EPOS LHC: Test of collective hadronization with data measured at the CERN Large Hadron Collider

2013/06/30 by T. Pierog, Iu. Karpenko, J. Katzy +3 · 1,281 citations
Physics and Astronomy · #Event generator #Hadron #Hadronization #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevc.92.034906

published in Physical Review C 92(3) (American Institute of Physics) · 27 pages, 34 figures, change to 1 column style, add ALICE data on PbPb dN/deta and link to source code

arxiv created 2013/12/20 · openalex publication_date 2015/09/14 · arxiv updated 2015/09/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Epos is a Monte Carlo event generator for minimum bias hadronic interactions, used for both heavy ion interactions and cosmic ray air shower simulations. Since the last public release in 2009, the Large Hadron Collider (LHC) experiments have provided a number of very interesting data sets comprising minimum bias p\text\ensuremath-p,\phantom\rule0.16em0exp-Pb, and Pb-Pb interactions. We describe the changes required to the model to reproduce in detail the new data available from the LHC and the consequences in the interpretation of these data. In particular we discuss the effect of the collective hadronization in p\text\ensuremath-p scattering. A different parametrization of flow has been introduced in the case of a small volume with high density of thermalized matter (core) reached in p\text\ensuremath-p compared to large volume produced in heavy ion collisions. Both parametrizations depend only on the geometry and the amount of secondary particles entering in the core and not on the beam mass or energy. The transition between the two flow regimes can be tested with p-Pb data. Epos LHC is able to reproduce all minimum bias results for all particles with transverse momentum from p_t=0 to a few GeV/c.

Citations

• Review of Particle Physics
• Analyzing radial flow features inp-Pb andp-pcollisions at several TeV by studying identified-particle production with the event generator EPOS3
• Ridges and Soft Jet Components in Untriggered Di-hadron Correlations in Pb+Pb Collisions at 2.76 TeV
• Evidence for Flow from Hydrodynamic Simulations ofp−PbCollisions at 5.02 TeV fromv2Mass Splitting
• Collisional Energy Loss of a Fast Parton in a QGP
• Constraints from the first LHC data on hadronic event generators for ultra-high energy cosmic-ray physics
• Radiative energy loss of high energy quarks and gluons in a finite volume quark-gluon plasma
• Event-by-event simulation of the three-dimensional hydrodynamic evolution from flux tube initial conditions in ultrarelativistic heavy ion collisions
• Multiplicity distribution and mechanisms of the high-energy hadron collisions
• Suppression of charged particle production at large transverse momentum in central Pb–Pb collisions at sNN=2.76 TeV
• Diffraction in Pythia
• Elastic Scattering and Total Cross-Section in p+p reactions measured by the LHC Experiment TOTEM at sqrt(s) = 7 TeV
• Review of Particle Physics

Cited by

• Measurement of the Higgs boson decay to a low-mass dilepton system and a photon in pp collisions at √(s) = 13 and 13.6 TeV with the ATLAS detector
• A LOFAR-style reconstruction of cosmic-ray air showers with SKA-Low
• The Muon Puzzle in cosmic-ray induced air showers and its connection to the Large Hadron Collider
• Measurement of the inelastic pp cross-section at a centre-of-mass energy of s √(s) = 7 TeV
• Probing the evolution of the EAS muon content in the atmosphere with KASCADE-Grande
• Total, inelastic and (quasi-)elastic cross sections of high energy pA and gamma-A reactions with the dipole formalism
• Pseudorapidity and transverse-momentum distributions of charged particles in proton–proton collisions at s=13 TeV
• F: A new observable for photon-hadron discrimination in hybrid air shower events
• QCD challenges from pp to A–A collisions
• Cosmogenic photon and neutrino fluxes in the Auger era
• Hadronic interaction model sibyll2.3cand inclusive lepton fluxes
• Measurement of the inelastic pp cross-section at a centre-of-mass energy of 13 TeV
• Longitudinal correlations from fluctuating strings in Pb-Pb, p-Pb, and p−p collisions
• Deuteron and antideuteron production simulation in cosmic-ray interactions
• Measurement of the Inelastic Proton-Proton Cross Section at s=13 TeV with the ATLAS Detector at the LHC
• Probabilistic mapping between multiparticle production variables and the depth of maximum in proton-induced extensive air showers

Related

• New Developments of EPOS 2
• EPOS.LHC-R : a global approach to solve the muon puzzle
• Strangeness Enhancement at LHC Energies using the thermal model and EPOSLHC event-generator
• Collective flow in (anti)proton-proton collision at Tevatron and LHC
• Impact of the EPOS.LHC-R hadronic interaction model on the Centaurus A ultrahigh-energy cosmic-ray scenario