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LU-TP-17-33
MCNET-17-16
arXiv:1710.09725
Phys.Lett. B779 (2018) 58-63

by: Bierlich, Christian (Lund U.) et al.

Abstract:
We present a microscopic model for collective effects in high multiplicity proton--proton collisions, where multiple partonic subcollisions give rise to a dense system of strings. From lattice calculations we know that QCD strings are transversely extended, and we argue that this should result in a transverse pressure and expansion, similar to the flow in a deconfined plasma. The model is implemented in the PYTHIA8 Monte Carlo event generator, and we find that it can qualitatively reproduce the long range azimuthal correlations forming a near-side ridge in high multiplicity proton--proton events at LHC energies.
Link: 
http://inspirehep.net/record/1632782
Publ date: 
Friday, October 27, 2017 - 05:10