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Core-corona procedure and microcanonical hadronization to understand strangeness enhancement in proton-proton and heavy ion collisions in the EPOS4 framework

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arxiv 2306.10277 v2 pith:VXXWARS3 submitted 2023-06-17 hep-ph nucl-th

classification hep-phnucl-th
keywords core-coronacollisionseffectsepos4frameworkhadronizationmicrocanonicalmultiplicity
verification ladder T0 review T1 audit T2 compute T3 formal
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The multiplicity dependence of multistrange hadron yields in proton-proton and lead-lead collisions at several TeV allows one to study the transition from very big to very small systems, in particular, concerning collective effects. I investigate this, employing a core-corona approach based on new microcanonical hadronization procedures in the EPOS4 framework, as well as new methods allowing one to transform energy-momentum flow through freeze-out surfaces into invariant-mass elements. I try to disentangle effects due to ``canonical suppression'' and ``core-corona separation'', which will both lead to a reduction of the yields at low multiplicity.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Two-particle number and transverse momentum balance function with event-topology in pp collisions at $\sqrt{s}=13$ TeV

    hep-ex 2025-08 conditional novelty 6.0 of 10

    In PYTHIA8 and EPOS-LHC simulations of pp collisions, charge balance function widths narrow with multiplicity, are narrower in jet-like than isotropic events, and EPOS core-on/off differences point to radial flow as t...

  2. Disentangling Initial-State and Evolution Effects in Heavy-Ion Collisions Using EPOS and PHSD

    hep-ph 2025-09 conditional novelty 5.0 of 10

    By swapping initial conditions and evolution engines between EPOS and PHSD, the authors find that the dynamical evolution stage, not the initial state, dominates final hadron spectra and elliptic flow in 200 GeV Au+Au...

  3. Flow in small systems in the EPOS4 approach for high-energy scatterings

    hep-ph 2025-08 conditional novelty 5.0 of 10

    In the EPOS4 framework, a symmetric initial parton distribution cannot reproduce the flat elliptic flow versus multiplicity seen in high-multiplicity pp collisions, whereas a two-center 'dipole' proton shape can.

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