Inclusive jet spectra in 2.76 TeV collisions from ALICE

TL;DR

This paper presents measurements of inclusive jet spectra in 2.76 TeV collisions from ALICE, providing insights into parton energy loss and the properties of hot nuclear matter in heavy-ion collisions.

Contribution

It introduces a detailed analysis of jet reconstruction and background subtraction techniques in Pb-Pb collisions at LHC energies.

Findings

Jet spectra measured in Pb-Pb collisions at 2.76 TeV.

Comparison with pp baseline to study energy loss.

Methodology for jet reconstruction in high-background environments.

Abstract

Measurements of high-pT particle production in heavy-ion collisions at RHIC have shown that medium-induced energy loss affects the partons produced in the early stage of a heavy-ion col- lision. The increased initial production cross section for partons at LHC energies makes fully reconstructed jets available in a wide kinematic range, which allows for a more differential in- vestigation of parton energy loss. Partonic energy loss allows us to access key observables of the hot deconfined nuclear matter produced in heavy-ion collisions. The inclusive cross-section of reconstructed jets using the ALICE tracking detectors and electromagnetic calorimeter is pre- sented from data collected during the 2.76 TeV pp runs. The procedures used to reconstruct jets and extract them from a fluctuating background in Pb-Pb collisions are discussed.