Jet structure in pp and Pb-Pb collisions with the ALICE experiment

• Verfasst von: Busch, Oliver [VerfasserIn]
• Titel: Jet structure in pp and Pb-Pb collisions with the ALICE experiment
• Körperschaft: ALICE [VerfasserIn]
• Verf.angabe: Oliver Busch for the ALICE collaboration
• Jahr: 2015
• Umfang: 8 S.
• Fussnoten: Gesehen am 23.10.2020
• Titel Quelle: Enthalten in: Journal of physics / Conference Series
• Ort Quelle: Bristol : IOP Publ., 2004
• Jahr Quelle: 2015
• Band/Heft Quelle: 589(2015,1) Artikel-Nummer 8012003, 8 Seiten
• ISSN Quelle: 1742-6596
• DOI: doi:10.1088/1742-6596/589/1/012003
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1736490095

Abstract

We report results from the ALICE collaboration on jet production and jet properties in pp and Pb-Pb collisions at the LHC. The charged particle jet production cross-section and measurements of jet fragmentation and jet shape in pp collisions at = 7 TeV are presented. The results are confronted with simulations from Monte Carlo event generators. Measurements of charged particle jets in Pb-Pb collisions at = 2.76 TeV with resolution parameter R = 0.2 and R = 0.3 show a strong momentum dependent suppression in central relative to peripheral collisions. The analysis of the semi-inclusive distribution of charged particle jets recoiling from a high-pT trigger hadron allows an unbiased measurement of the jet structure for larger cone radii. No significant redistribution of the energy flow inside the jet cone is observed. Di-hadron correlations allow to assess jet structure at very low particle momenta. For 2 < pT,trig < 3 GeV/c and 1 < PT,assoc < 2 GeV/c, a strongly asymmetric near-side correlation, broader in Δη than Δϕ, is observed.