pi0 Fixed pT suppression and elliptic flow at LHC

TL;DR

This paper predicts that increased medium density at LHC will lead to higher pi0 suppression and elliptic flow compared to RHIC, based on a final state interaction model.

Contribution

It extends a final state interaction model from RHIC to LHC, predicting increased suppression and flow with higher medium density.

Findings

Pi0 suppression at LHC increases by a factor of 2 at large pT.

Elliptic flow v2 increases by a factor of 1.5 at LHC.

Model uses same cross-section and pT-shift as at RHIC.

Abstract

Using a final state interaction model which describes the data on these two observables, at RHIC, we make predictions at the LHC -- using the same cross-section and pT-shift. The increase in the medium density between these two energies (by a factor close to three) produces an increase of the fixed pT pi0 suppression by a factor 2 at large pT and of v2 by a factor 1.5.