Jet Reconstruction in Heavy Ion Collisions

Abstract

We examine the problem of jet reconstruction at heavy-ion colliders using jet-area-based background subtraction tools as provided by FastJet. We use Monte Carlo simulations with and without quenching to study the performance of several jet algorithms, including the option of filtering, under conditions corresponding to RHIC and LHC collisions. We find that most standard algorithms perform well, though the anti-kt and filtered Cambridge/Aachen algorithms have clear advantages in terms of the reconstructed transverse-momentum offset and dispersion.

31 pages, 17 figures

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Cited by in corpus (37)

• FastJet user manual
• Performance of the ALICE Experiment at the CERN LHC
• Observation and studies of jet quenching in PbPb collisions at nucleon-nucleon center-of-mass energy = 2.76 TeV
• Review of Jet Measurements in Heavy Ion Collisions
• Boosted objects and jet substructure at the LHC
• Jet physics in heavy-ion collisions
• A perturbative framework for jet quenching
• Measurement of jet suppression in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Angular Structure of Jet Quenching Within a Hybrid Strong/Weak Coupling Model
• Measurement of charged jet suppression in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production
• Measurement of event background fluctuations for charged particle jet reconstruction in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Boosting Higgs pair production in the $b\bar{b}b\bar{b}$ final state with multivariate techniques
• Study of jet quenching with Z+jet correlations in PbPb and pp collisions at sqrt(s[NN]) = 5.02 TeV
• Constraining the Physics of Jet Quenching
• Inclusive prompt photon production in nuclear collisions at RHIC and LHC
• Optimisation of large-radius jet reconstruction for the ATLAS detector in 13 TeV proton-proton collisions
• Azimuthal anisotropy of charged jet production in $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV Pb-Pb collisions
• A local Monte Carlo framework for coherent QCD parton energy loss
• Influence of multiple in-medium scattering processes on the momentum imbalance of reconstructed di-jets
• Fluctuations and asymmetric jet events in PbPb collisions at the LHC
• Using Hard Dihadron Correlations to constrain Elastic Energy Loss
• Pileup mitigation at the LHC: a theorist's view
• QCD and Jets at Hadron Colliders
• An analysis of the influence of background subtraction and quenching on jet observables in heavy-ion collisions
• Out of Medium Fragmentation from Long-Lived Jet Showers
• On the use of charged-track information to subtract neutral pileup
• Jet Quenching at LHC
• Full Jet Reconstruction in 2.76 TeV pp and Pb-Pb collisions in the ALICE experiment
• Measurement of jet radial profiles in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Jet Fragmentation Function Moments in Heavy Ion Collisions
• Measurement of jet spectra in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV with the ALICE detector at the LHC
• Measurement of inclusive charged-particle jet production in pp and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Measurement of jet $p_{\mathrm{T}}$ spectra in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76\mathrm{TeV}$ with the ALICE detector at the LHC
• Modification of charged-particle jets in event-shape engineered Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Measurement of jet spectra with charged particles in Pb-Pb collisions at $\sqrt{s_{NN}}$=2.76 TeV with the ALICE detector
• Inclusive jet spectra in 2.76 TeV collisions from ALICE