Elsevier

Nuclear Physics A

Volume 982, February 2019, Pages 499-502
Nuclear Physics A

XXVIIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2018)
Microscopic collectivity: The ridge and strangeness enhancement from string–string interactions

https://doi.org/10.1016/j.nuclphysa.2018.07.015Get rights and content
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Abstract

We present the microscopic model for collective effects, built on string–string interactions (string shoving and rope hadronization), recently implemented in the PYTHIA8 and DIPSY event generators. Rope hadronization is shown to give a good description of strangeness enhancement across pp, pA and AA collision systems, while string shoving qualitatively describes the ridge observed in pp collisions.

Keywords

QCD phenomenology
Flow
Strangeness enhancement
Small systems
Monte Carlo event generators

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1

Preprint number: LU-TP 18-22, MCnet-18-16. Work done in collaboration with G. Gustafson and L. Lönnblad. Work funded in part by the Swedish Research Council, contracts number 2012-02283 and 2017-0034, and in part by the MCnetITN3 H2020 Marie Curie Initial Training Network, contract 722104. Travel support from Bokelunds resestipendiefond is gratefully acknowledged.