Viscous Hydrodynamic Predictions for Nuclear Collisions at the LHC

TL;DR

This paper uses hydrodynamic simulations to predict elliptic flow in lead-lead and proton-proton collisions at the LHC, indicating a significant increase in lead-lead and minimal flow in proton-proton unless specific viscosity conditions are met.

Contribution

It provides novel hydrodynamic predictions for elliptic flow at LHC energies, extending previous models to new collision systems and energies.

Findings

10% increase in v_2 from RHIC to LHC for lead-lead collisions

v_2 ~ 0 in proton-proton collisions unless eta/s < 0.08

Hydrodynamic models can predict flow signals at LHC energies

Abstract

Hydrodynamic simulations are used to make predictions for the integrated elliptic flow coefficient v_2 in sqrt(s)=5.5 TeV lead-lead and sqrt(s)=14 TeV proton-proton collisions at the LHC. We predict a 10% increase in v_2 from RHIC to Pb+Pb at LHC, and v_2 ~ 0 in p+p collisions unless eta/s < 0.08.