Leif Lönnblad
Professor
Collectivity without plasma in hadronic collisions
Author
Summary, in English
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.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2018-04-10
Language
English
Pages
58-63
Publication/Series
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume
779
Document type
Journal article
Publisher
Elsevier
Topic
- Subatomic Physics
Keywords
- Collectivity
- Confinement
- Hadronisation
- Monte Carlo generators
- Quark–gluon plasma
Status
Published
Project
- QCD Phenomenology and Event Generator Development
- Innovative Network for Monte Carlo Event Generators for LHC Physics
ISBN/ISSN/Other
- ISSN: 0370-2693