Jet measurements in proton-proton collisions with the ALICE experiment at LHC

TL;DR

This paper reports on jet measurements in proton-proton collisions at 7 TeV using the ALICE detector at the LHC, focusing on jet spectra, properties, and their correction for detector effects to test QCD and serve as a baseline for heavy-ion studies.

Contribution

It provides detailed measurements of charged particle jet spectra and properties in proton-proton collisions at 7 TeV, including correction methods and analysis techniques.

Findings

Jet spectra corrected for detector effects.

Analysis of jet multiplicity and shapes.

Baseline data for heavy-ion collision comparisons.

Abstract

The study of jets, collimated sprays of particles associated with hard partons, is an important tool in testing perturbative quantum chromodynamics (pQCD) and probing hot and dense nuclear matter created in high energy heavy-ion collisions. Jets enable the study of hard scatterings, fragmentation and hadronisation and their modification in the presence of a nuclear medium with respect to baseline vacuum measurements, which is acquired from jet measurements in proton-proton collisions. We have analysed data from proton-proton collisions at s= \sqrt{s} = 7 TeV measured by the ALICE experiment at the LHC and reconstructed the inclusive spectra of charged particle jets at mid- rapidity using anti-kT clustering algorithm. We present the jet spectra corrected for detector effects using several unfolding methods. Furthermore, we examine various properties of jets, such as their charged particle multiplicity and jet shapes.