Collectivity without plasma in hadronic collisions

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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.

Sidor (från-till)58-63
Antal sidor6
TidskriftPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatusPublished - 2018 apr. 10

Ämnesklassifikation (UKÄ)

  • Subatomär fysik


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