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Jet modifications from colour rope formation in dense systems of non-parallel strings

Christian Bierlich, Smita Chakraborty, Gösta Gustafson, Leif Lönnblad

SciPost Phys. 13, 023 (2022) · published 17 August 2022


We revisit our rope model for string fragmentation that has been shown to give a reasonable description of strangeness and baryon enhancement in high-multiplicity pp events at the LHC. A key feature of the model is that the enhancement is driven by the increased string tension due to strings overlapping in dense systems. By introducing an improved space-time picture for the overlap between fragmenting strings, where also non-parallel strings are properly taken into account, we are now able to investigate the enhancement both in jets and in the underlying event in a consistent way.

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