Prospects for identified leading particle correlation at LHC and in ALICE

TL;DR

This paper discusses the potential of leading particle correlations in ALICE at LHC to study medium properties in heavy-ion collisions, especially below the jet reconstruction threshold, using identified particles.

Contribution

It presents the prospects and potential of using identified leading particle correlations in ALICE to explore medium characteristics at LHC energies.

Findings

Potential to study hard scatterings and bulk medium simultaneously.

Extension of correlations to low transverse momenta with ALICE capabilities.

Preparation for analyzing upcoming p+p and Pb+Pb collision data.

Abstract

Azimuthal di-hadron correlations play important role in the characterization of the medium created in heavy-ion collisions at RHIC. Moreover, as a novel phenomenon, strong modification of the away-side correlation is observed in Au+Au with respect to p+p collisions. Below the exclusive jet reconstruction threshold at LHC, leading particle correlations will provide access to the regime where hard scatterings and bulk medium properties can be simultaneously studied. Leading particle correlations can be extended to very low transverse momenta via the tracking and particle identification capabilities of ALICE, to the coalescence and hydrodynamic domains. In preparation for the first p+p and Pb+Pb collisions of LHC, we present prospects on leading particle correlations with identified particles in ALICE.