Baryon and meson elliptic flow coefficients group and split at intermediate transverse momentum in pp and p-Pb collisions, signaling possible partonic flow in small systems.
Strangeness enhancement across collision systems without a plasma
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abstract
We present novel rope hadronization results for strange hadron enhancement in pp, pPb, and PbPb collisions using PYTHIA/Angantyr at LHC energies. With the rope model for string fragmentation, we find that the strangeness and baryon enhancement has a coherent increase across all collision systems as a function of average charged central multiplicity, in qualitative agreement with LHC data. In AA collisions, we find that the baryonic yields overshoot data at high multiplicities, and we discuss how a combination of rope hadronization with other string interactions may tame this rise.
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Observation of partonic flow in proton-proton and proton-nucleus collisions
Baryon and meson elliptic flow coefficients group and split at intermediate transverse momentum in pp and p-Pb collisions, signaling possible partonic flow in small systems.