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

Abstract

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.

27 pages, 32 figures

References in corpus (3)

• Core-Corona Separation in Ultra-Relativistic Heavy Ion Collisions
• Enhanced strange baryon production in Au+Au collisions compared to p+p at sqrts = 200 GeV
• Centrality dependence of strangeness production in heavy-ion collisions as a geometrical effect of core-corona superposition

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