Abstract
Based on the recent success of the Angantyr model in describing multiplicity distributions of the hadronic final state in high energy heavy ion collisions, we investigate how far one can go with a such a string-based scenario to describe also flow effects measured in such collisions.
For this purpose we improve our previous so-called shoving model, where strings that are close in space-time tend to repel each other in a way that could generate anisotropic flow, and we find that this model can indeed generate such flows in AA collisions. The flow generated is not quite enough to reproduce measurements, but we identify some shortcomings in the presented implementation of the model that, when fixed, could plausibly give a more realistic amount of flow.
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Work supported in part by the Knut and Alice Wallenberg foundation, contract number 2017.0036, the Swedish Research Council, contracts number 2016-03291, 2016-05996 and 2017-0034, in part by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme, grant agreement No. 668679, and in part by the MCnetITN3 H2020 Marie Curie Initial Training Network, contract 722104.
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Bierlich, C., Chakraborty, S., Gustafson, G. et al. Setting the string shoving picture in a new frame. J. High Energ. Phys. 2021, 270 (2021). https://doi.org/10.1007/JHEP03(2021)270
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DOI: https://doi.org/10.1007/JHEP03(2021)270